taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
E0222776BE59604FFF1BFA40F35DFC98.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257684/files/figure.png	https://doi.org/10.5281/zenodo.11257684	FIGURE 3. Parastacus pugnax (Poeppig, 1835)—­ Type of Astacus chilensis (MNHN-As 356).	FIGURE 3. Parastacus pugnax (Poeppig, 1835)—­ Type of Astacus chilensis (MNHN-As 356).	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE59604FFF1BFA40F35DFC98.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257686/files/figure.png	https://doi.org/10.5281/zenodo.11257686	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE59604FFF1BFA40F35DFC98.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257688/files/figure.png	https://doi.org/10.5281/zenodo.11257688	FIGURE 5. Parastacus pugnax (Poeppig, 1835): A—­ epistome (UFRGS 2407); B—­ thoracic sternites and gonopores (UFRGS 726); C—­ thoracomere 8, caudal view (UFRGS 726); D—­ antennal scale, lateral view (UFRGS 726); E—­ mandible (UFRGS 726); F—­ third maxilliped, ventral view (UFRGS 726); G—­ third maxilliped, dorsal view (UFRGS 726); H—­ first pereiopod, lateral view (UFRGS 726); I—­ first pereiopod, dorsal view (UFRGS 726); J—­ second pereiopod, lateral view (UFRGS 726). Scale bars: A, C, D, H, I—­ 5 mm; B—­ 10 mm; F, G, J—­ 3.33 mm.	FIGURE 5. Parastacus pugnax (Poeppig, 1835): A—­ epistome (UFRGS 2407); B—­ thoracic sternites and gonopores (UFRGS 726); C—­ thoracomere 8, caudal view (UFRGS 726); D—­ antennal scale, lateral view (UFRGS 726); E—­ mandible (UFRGS 726); F—­ third maxilliped, ventral view (UFRGS 726); G—­ third maxilliped, dorsal view (UFRGS 726); H—­ first pereiopod, lateral view (UFRGS 726); I—­ first pereiopod, dorsal view (UFRGS 726); J—­ second pereiopod, lateral view (UFRGS 726). Scale bars: A, C, D, H, I—­ 5 mm; B—­ 10 mm; F, G, J—­ 3.33 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE5E604EFF1BFCC8F2C2F8C0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257690/files/figure.png	https://doi.org/10.5281/zenodo.11257690	FIGURE 6. Parastacus pilimanus (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 277); B—­ cephalon, dorsal view (UFRGS 277); C—­ cephalon, lateral view (UFRGS 277); D—­ female pleonal somites, dorsal view (UFRGS 277); E—­ first to third male pleonal pleura (UFRGS 277); F—­ first to third female pleonal pleura (UFRGS 277); G—­ tailfan (UFRGS 277). Scale bars: A, C, D, E—­ 1 cm; B, F, G—­ 5 mm.	FIGURE 6. Parastacus pilimanus (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 277); B—­ cephalon, dorsal view (UFRGS 277); C—­ cephalon, lateral view (UFRGS 277); D—­ female pleonal somites, dorsal view (UFRGS 277); E—­ first to third male pleonal pleura (UFRGS 277); F—­ first to third female pleonal pleura (UFRGS 277); G—­ tailfan (UFRGS 277). Scale bars: A, C, D, E—­ 1 cm; B, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE5E604EFF1BFCC8F2C2F8C0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257694/files/figure.png	https://doi.org/10.5281/zenodo.11257694	FIGURE 7. Parastacus pilimanus (von Martens, 1869): A—­ epistome (UFRGS 277); B—­ thoracic sternites and gonopores (UFRGS 277); C—­ thoracomere 8, caudal view (UFRGS 277); D—­ antennal scale, lateral view (UFRGS 277); E—­ mandible (UFRGS 277); F—­ third maxilliped, ventral view (UFRGS 277); G—­ third maxilliped, dorsal view (paratype 4); H—­ first pereiopod, lateral view (UFRGS 277); I—­ first pereiopod, dorsal view (UFRGS 277); J—­ second pereiopod, lateral view (UFRGS 277). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 1 cm; D, E—­ 2.5 mm.	FIGURE 7. Parastacus pilimanus (von Martens, 1869): A—­ epistome (UFRGS 277); B—­ thoracic sternites and gonopores (UFRGS 277); C—­ thoracomere 8, caudal view (UFRGS 277); D—­ antennal scale, lateral view (UFRGS 277); E—­ mandible (UFRGS 277); F—­ third maxilliped, ventral view (UFRGS 277); G—­ third maxilliped, dorsal view (paratype 4); H—­ first pereiopod, lateral view (UFRGS 277); I—­ first pereiopod, dorsal view (UFRGS 277); J—­ second pereiopod, lateral view (UFRGS 277). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 1 cm; D, E—­ 2.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE5E604EFF1BFCC8F2C2F8C0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257698/files/figure.png	https://doi.org/10.5281/zenodo.11257698	FIGURE 8. Parastacus pilimanus (von Martens, 1869), living specimen and habitat:A—­ living specimen; B—­ habitat, wetland in the municipality of Uruguaiana, state of Rio Grande do Sul, Brazil; C—­ burrow opening with chimney. White arrow indicates burrow opening. Scale bar: A—­ 10 mm.	FIGURE 8. Parastacus pilimanus (von Martens, 1869), living specimen and habitat:A—­ living specimen; B—­ habitat, wetland in the municipality of Uruguaiana, state of Rio Grande do Sul, Brazil; C—­ burrow opening with chimney. White arrow indicates burrow opening. Scale bar: A—­ 10 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE426059FF1BFA17F3BFFC60.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257702/files/figure.png	https://doi.org/10.5281/zenodo.11257702	FIGURE 9. Parastacus brasiliensis (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 5868); B—­ cephalon, dorsal view (UFRGS 5866); C—­ cephalon, lateral view (UFRGS 5868); D—­ female pleonal somites, dorsal view (UFRGS 278); E—­ first to third male pleonal pleurae (UFRGS 5868); F—­ first to third female pleonal pleura (UFRGS 278); G—­ tailfan (UFRGS 5868). Scale bars: A, D, E, G—­ 10 mm; B, C, F—­ 5 mm.	FIGURE 9. Parastacus brasiliensis (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 5868); B—­ cephalon, dorsal view (UFRGS 5866); C—­ cephalon, lateral view (UFRGS 5868); D—­ female pleonal somites, dorsal view (UFRGS 278); E—­ first to third male pleonal pleurae (UFRGS 5868); F—­ first to third female pleonal pleura (UFRGS 278); G—­ tailfan (UFRGS 5868). Scale bars: A, D, E, G—­ 10 mm; B, C, F—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE426059FF1BFA17F3BFFC60.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257705/files/figure.png	https://doi.org/10.5281/zenodo.11257705	FIGURE 10. Parastacus brasiliensis (von Martens, 1869): A—­ epistome (UFRGS 278); B—­ thoracic sternites and gonopores (UFRGS 5868); C—­ thoracomere 8, caudal view (UFRGS 278); D—­ antennal scale, lateral view (UFRGS 5868); E—­ mandible (UFRGS 5868); F—­ third maxilliped, ventral view (UFRGS 278); G—­ third maxilliped, dorsal view (paratype 4 UFRGS 278); H—­ first pereiopod, lateral view (UFRGS 276); I—­ first pereiopod, dorsal view (UFRGS 278); J—­ second pereiopod, lateral view (UFRGS 5868). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 10 mm; D, E—­ 3.33 mm.	FIGURE 10. Parastacus brasiliensis (von Martens, 1869): A—­ epistome (UFRGS 278); B—­ thoracic sternites and gonopores (UFRGS 5868); C—­ thoracomere 8, caudal view (UFRGS 278); D—­ antennal scale, lateral view (UFRGS 5868); E—­ mandible (UFRGS 5868); F—­ third maxilliped, ventral view (UFRGS 278); G—­ third maxilliped, dorsal view (paratype 4 UFRGS 278); H—­ first pereiopod, lateral view (UFRGS 276); I—­ first pereiopod, dorsal view (UFRGS 278); J—­ second pereiopod, lateral view (UFRGS 5868). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 10 mm; D, E—­ 3.33 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE426059FF1BFA17F3BFFC60.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257710/files/figure.png	https://doi.org/10.5281/zenodo.11257710	FIGURE 11. Parastacus brasiliensis (von Martens, 1869), habitat and living specimens:A—­ habitat, stream in the municipality of Porto Alegre, state of Rio Grande do Sul, Brazil; B—­ burrow opening with chimney; C—­ living specimen, ovigerous female dorsal view; D—­ living specimen. White arrow indicates the chimney.	FIGURE 11. Parastacus brasiliensis (von Martens, 1869), habitat and living specimens:A—­ habitat, stream in the municipality of Porto Alegre, state of Rio Grande do Sul, Brazil; B—­ burrow opening with chimney; C—­ living specimen, ovigerous female dorsal view; D—­ living specimen. White arrow indicates the chimney.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE486058FF1BFB90F594FDEC.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257714/files/figure.png	https://doi.org/10.5281/zenodo.11257714	FIGURE 12. Parastacus nicoleti (Philippi, 1882). A—­ Specimen deposited in the UFRGS collection (UFRGS 2405); B—­ living specimen; C—­ chimney; D—­ habitat, Vegas or hualves in Chile. Photos B—­ D by Luis Amador.	FIGURE 12. Parastacus nicoleti (Philippi, 1882). A—­ Specimen deposited in the UFRGS collection (UFRGS 2405); B—­ living specimen; C—­ chimney; D—­ habitat, Vegas or hualves in Chile. Photos B—­ D by Luis Amador.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE486058FF1BFB90F594FDEC.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257718/files/figure.png	https://doi.org/10.5281/zenodo.11257718	FIGURE 13. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, C, D, E—­ 10 mm; B, F, G—­ 5 mm.	FIGURE 13. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, C, D, E—­ 10 mm; B, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE496058FF1BFD1CF4A1F813.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257718/files/figure.png	https://doi.org/10.5281/zenodo.11257718	FIGURE 13. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, C, D, E—­ 10 mm; B, F, G—­ 5 mm.	FIGURE 13. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, C, D, E—­ 10 mm; B, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE496058FF1BFD1CF4A1F813.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257720/files/figure.png	https://doi.org/10.5281/zenodo.11257720	FIGURE 14. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ epistome; B—­ thoracic sternites and gonopores; C—­ thoracomere 8, caudal view; D—­ antennal scale, lateral view; E—­ mandible; F—­ third maxilliped, ventral view; G—­ third maxilliped, dorsal view; H—­ first pereiopod, lateral view; I—­ first pereiopod, dorsal view; J—­ second pereiopod, lateral view. Scale bars: A, I—­ 3.33 mm; B, C, F, G, H, J—­ 5 mm; D, E—­ 2.5 mm.	FIGURE 14. Parastacus defossus Faxon 1898 (FC-UDELAR w/n): A—­ epistome; B—­ thoracic sternites and gonopores; C—­ thoracomere 8, caudal view; D—­ antennal scale, lateral view; E—­ mandible; F—­ third maxilliped, ventral view; G—­ third maxilliped, dorsal view; H—­ first pereiopod, lateral view; I—­ first pereiopod, dorsal view; J—­ second pereiopod, lateral view. Scale bars: A, I—­ 3.33 mm; B, C, F, G, H, J—­ 5 mm; D, E—­ 2.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE4D605CFF1BFF38F39DF899.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257722/files/figure.png	https://doi.org/10.5281/zenodo.11257722	FIGURE 15. Parastacus saffordi Faxon 1898: A—­ habitus, dorsal view (UFRGS 1356); B—­ cephalon, dorsal view (UFRGS 1356); C—­ cephalon, lateral view (UFRGS 1356); D—­ first to third male pleonal pleura (UFRGS 1356); E—­ tailfan (UFRGS 356). Scale bars: A—­ 10 mm; B, C, D, E—­ 5 mm.	FIGURE 15. Parastacus saffordi Faxon 1898: A—­ habitus, dorsal view (UFRGS 1356); B—­ cephalon, dorsal view (UFRGS 1356); C—­ cephalon, lateral view (UFRGS 1356); D—­ first to third male pleonal pleura (UFRGS 1356); E—­ tailfan (UFRGS 356). Scale bars: A—­ 10 mm; B, C, D, E—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE4D605CFF1BFF38F39DF899.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257726/files/figure.png	https://doi.org/10.5281/zenodo.11257726	FIGURE 16. Parastacus saffordi Faxon 1898, holotype and paratypes:A—­ epistome (UFRGS 1356); B—­ thoracic sternites and gonopores (UFRGS 1356); C—­ thoracomere 8, caudal view (UFRGS 1366); D—­ antennal scale, lateral view (UFRGS 5875); E—­ mandible (UFRGS 1351); F—­ third maxilliped, ventral view (UFRGS 1356); G—­ third maxilliped, dorsal view (UFRGS 1356); H—­ first pereiopod, lateral view (UFRGS 1356) I—­ first pereiopod dorsal view (UFRGS 1356); J—­ second pereiopod, lateral view (UFRGS 1356). Scale bars: A, C, E, F, G, H, I, J—­ 5 mm; B—­ 10mm; D—­ 1.5 mm.	FIGURE 16. Parastacus saffordi Faxon 1898, holotype and paratypes:A—­ epistome (UFRGS 1356); B—­ thoracic sternites and gonopores (UFRGS 1356); C—­ thoracomere 8, caudal view (UFRGS 1366); D—­ antennal scale, lateral view (UFRGS 5875); E—­ mandible (UFRGS 1351); F—­ third maxilliped, ventral view (UFRGS 1356); G—­ third maxilliped, dorsal view (UFRGS 1356); H—­ first pereiopod, lateral view (UFRGS 1356) I—­ first pereiopod dorsal view (UFRGS 1356); J—­ second pereiopod, lateral view (UFRGS 1356). Scale bars: A, C, E, F, G, H, I, J—­ 5 mm; B—­ 10mm; D—­ 1.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE4D605CFF1BFF38F39DF899.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257732/files/figure.png	https://doi.org/10.5281/zenodo.11257732	FIGURE 17. Parastacus saffordi Faxon 1898, habitat and living specimens: A—­ Habitat, rain water fed wetlands in small depressions in the municipality of Siderópolis, state of Santa Catarina, Brazil; B—­ single burrow opening; C–E—­ living specimens. Scale bars: D, E—­ 1 cm.	FIGURE 17. Parastacus saffordi Faxon 1898, habitat and living specimens: A—­ Habitat, rain water fed wetlands in small depressions in the municipality of Siderópolis, state of Santa Catarina, Brazil; B—­ single burrow opening; C–E—­ living specimens. Scale bars: D, E—­ 1 cm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE716064FF1BFF38F650FCD0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257734/files/figure.png	https://doi.org/10.5281/zenodo.11257734	FIGURE 18. Parastacus varicosus Faxon 1898: A—­ habitus, dorsal view (UFRGS 281); B—­ cephalon, dorsal view (UFRGS 1354); C—­ cephalon, lateral view (UFRGS 1354); D—­ female pleonal somites, dorsal view (UFRGS 3066); E—­ first to third male pleonal pleura (UFRGS 1354); F—­ first to third female pleonal pleura (UFRGS 3066); G—­ tailfan (UFRGS 281). Scale bars: A—­ 10 mm, B, C, D, E—­ 5 mm.	FIGURE 18. Parastacus varicosus Faxon 1898: A—­ habitus, dorsal view (UFRGS 281); B—­ cephalon, dorsal view (UFRGS 1354); C—­ cephalon, lateral view (UFRGS 1354); D—­ female pleonal somites, dorsal view (UFRGS 3066); E—­ first to third male pleonal pleura (UFRGS 1354); F—­ first to third female pleonal pleura (UFRGS 3066); G—­ tailfan (UFRGS 281). Scale bars: A—­ 10 mm, B, C, D, E—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE716064FF1BFF38F650FCD0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257738/files/figure.png	https://doi.org/10.5281/zenodo.11257738	FIGURE 19. Parastacus varicosus Faxon 1898. A—­ epistome (UFRGS 1354); B—­ thoracic sternites and gonopores (UFRGS 1354); C—­ thoracomere 8, caudal view (UFRGS 1353); D—­ antennal scale, lateral view (UFRGS 1355); E—­ mandible (UFRGS 1354); F—­ third maxilliped, ventral view (UFRGS 1354); G—­ third maxilliped, dorsal view (UFRGS 1354); H—­ first pereiopod, lateral view (UFRGS 1355); I—­ first pereiopod, dorsal view (UFRGS 1355); J—­ second pereiopod, lateral view (UFRGS 1354). Scale bars: A, C, F, G, H, I—­ 5 mm; B, J—­ 10 mm; D, E—­ 2.5 mm.	FIGURE 19. Parastacus varicosus Faxon 1898. A—­ epistome (UFRGS 1354); B—­ thoracic sternites and gonopores (UFRGS 1354); C—­ thoracomere 8, caudal view (UFRGS 1353); D—­ antennal scale, lateral view (UFRGS 1355); E—­ mandible (UFRGS 1354); F—­ third maxilliped, ventral view (UFRGS 1354); G—­ third maxilliped, dorsal view (UFRGS 1354); H—­ first pereiopod, lateral view (UFRGS 1355); I—­ first pereiopod, dorsal view (UFRGS 1355); J—­ second pereiopod, lateral view (UFRGS 1354). Scale bars: A, C, F, G, H, I—­ 5 mm; B, J—­ 10 mm; D, E—­ 2.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE716064FF1BFF38F650FCD0.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257740/files/figure.png	https://doi.org/10.5281/zenodo.11257740	FIGURE 20. Parastacus varicosus Faxon, 1898: habitat and living specimens. A—­ Habitat, backwater in the municipality of Novo Hamburgo, state of Rio Grande do Sul, Brazil; B—­ chimney; C—­ single opening; D—­ living specimen in nature; E—­ living specimen in aquarium. White arrows indicate burrow openings.	FIGURE 20. Parastacus varicosus Faxon, 1898: habitat and living specimens. A—­ Habitat, backwater in the municipality of Novo Hamburgo, state of Rio Grande do Sul, Brazil; B—­ chimney; C—­ single opening; D—­ living specimen in nature; E—­ living specimen in aquarium. White arrows indicate burrow openings.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE756069FF1BFC00F5DAFF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257744/files/figure.png	https://doi.org/10.5281/zenodo.11257744	FIGURE 21. Parastacus laevigatus Buckup & Rossi 1980, holotype and paratypes: A—­ habitus, dorsal view (holotype, MNRJ 31135); B—­ cephalon, dorsal view (holotype, MNRJ 31135); C—­ cephalon, lateral view (holotype, MN UFRJ w/n); D—­ female pleonal somites dorsal view (paratype, MNRJ 31137); E—­ first to third male pleonal pleura (holotype, MNRJ 31135); F—­ first to third female pleonal pleura (paratype, MNRJ 31137); G—­ tailfan (holotype, MNRJ 31135). Scale bars: A—­ 10 mm; B, C—­ 2,5 mm; D, E—­ 5 mm.	FIGURE 21. Parastacus laevigatus Buckup & Rossi 1980, holotype and paratypes: A—­ habitus, dorsal view (holotype, MNRJ 31135); B—­ cephalon, dorsal view (holotype, MNRJ 31135); C—­ cephalon, lateral view (holotype, MN UFRJ w/n); D—­ female pleonal somites dorsal view (paratype, MNRJ 31137); E—­ first to third male pleonal pleura (holotype, MNRJ 31135); F—­ first to third female pleonal pleura (paratype, MNRJ 31137); G—­ tailfan (holotype, MNRJ 31135). Scale bars: A—­ 10 mm; B, C—­ 2,5 mm; D, E—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE756069FF1BFC00F5DAFF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257746/files/figure.png	https://doi.org/10.5281/zenodo.11257746	FIGURE 22. Parastacus laevigatus Buckup & Rossi 1980, holotype and paratypes: A—­ epistome (holotype, MNRJ 31135); B—­ thoracic sternites and gonopores (holotype, MNRJ 31135); C—­ thoracomere 8, caudal view (holotype, MNRJ 31135); D—­ antennal scale, lateral view (paratype, MNRJ 31137); E—­ mandible (MN UFRJ w/n); F—­ third maxilliped, ventral view (paratype, MNRJ 31137); G—­ third maxilliped, dorsal view (paratype, MNRJ 31137); H—­ first pereiopod, lateral view (holotype, MNRJ 31135); I—­ first pereiopod, dorsal view (holotype, MNRJ 31135); J—­ second pereiopod, lateral view (holotype, MNRJ 31135). Scale bars: A, B, I—­ 5 mm; C—­ 3.33 mm; D—­ 1,5 mm; E—­ 1 mm; F, G—­ 2.5 mm; H, J—­ 10 mm.	FIGURE 22. Parastacus laevigatus Buckup & Rossi 1980, holotype and paratypes: A—­ epistome (holotype, MNRJ 31135); B—­ thoracic sternites and gonopores (holotype, MNRJ 31135); C—­ thoracomere 8, caudal view (holotype, MNRJ 31135); D—­ antennal scale, lateral view (paratype, MNRJ 31137); E—­ mandible (MN UFRJ w/n); F—­ third maxilliped, ventral view (paratype, MNRJ 31137); G—­ third maxilliped, dorsal view (paratype, MNRJ 31137); H—­ first pereiopod, lateral view (holotype, MNRJ 31135); I—­ first pereiopod, dorsal view (holotype, MNRJ 31135); J—­ second pereiopod, lateral view (holotype, MNRJ 31135). Scale bars: A, B, I—­ 5 mm; C—­ 3.33 mm; D—­ 1,5 mm; E—­ 1 mm; F, G—­ 2.5 mm; H, J—­ 10 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE78606AFF1BFEE4F43FFB2C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257750/files/figure.png	https://doi.org/10.5281/zenodo.11257750	FIGURE 23. Parastacus promatensis Fontoura & Conter 2008, holotype and paratypes: A—­ habitus, dorsal view (MCTP 2086); B—­ cephalon, dorsal view (MCTP 2086); C—­ cephalon lateral view (MCTP 2086); D—­ female pleonal somites, dorsal view (MCTP 2086); E—­ first to third male pleonal pleura (MCTP 2086); F—­ first to third second female pleonal pleura (MCTP 2086); G—­ tailfan (MCTP 2086). Scale bars: A—­ 20 mm; B, G—­ 5 mm; C, D, E, F—­ 10 mm.	FIGURE 23. Parastacus promatensis Fontoura & Conter 2008, holotype and paratypes: A—­ habitus, dorsal view (MCTP 2086); B—­ cephalon, dorsal view (MCTP 2086); C—­ cephalon lateral view (MCTP 2086); D—­ female pleonal somites, dorsal view (MCTP 2086); E—­ first to third male pleonal pleura (MCTP 2086); F—­ first to third second female pleonal pleura (MCTP 2086); G—­ tailfan (MCTP 2086). Scale bars: A—­ 20 mm; B, G—­ 5 mm; C, D, E, F—­ 10 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE78606AFF1BFEE4F43FFB2C.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257752/files/figure.png	https://doi.org/10.5281/zenodo.11257752	FIGURE 24. Parastacus promatensis Fontoura & Conter 2008, holotype and paratypes: A—­ epistome (MCTP 2086); B—­ thoracic sternites and gonopores (MCTP 2086); C—­ thoracomere 8, caudal view (MCTP 2086); D—­ antennal scale, lateral view (UFRGS 4157); E—­ mandible (UFRGS 4157); F—­ third maxilliped, ventral view (UFRGS 4157); G—­ third maxilliped, dorsal view (UFRGS 4157); H—­ first pereiopod, lateral view (MCTP 2086); I—­ first pereiopod, dorsal view (MCTP 2086); J—­ second pereiopod, lateral view (MCTP 2086). Scale bars: B, H, I—­ 10 mm; A, C, F, G, J—­ 5 mm; D, E—­ 3.33 mm.	FIGURE 24. Parastacus promatensis Fontoura & Conter 2008, holotype and paratypes: A—­ epistome (MCTP 2086); B—­ thoracic sternites and gonopores (MCTP 2086); C—­ thoracomere 8, caudal view (MCTP 2086); D—­ antennal scale, lateral view (UFRGS 4157); E—­ mandible (UFRGS 4157); F—­ third maxilliped, ventral view (UFRGS 4157); G—­ third maxilliped, dorsal view (UFRGS 4157); H—­ first pereiopod, lateral view (MCTP 2086); I—­ first pereiopod, dorsal view (MCTP 2086); J—­ second pereiopod, lateral view (MCTP 2086). Scale bars: B, H, I—­ 10 mm; A, C, F, G, J—­ 5 mm; D, E—­ 3.33 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7B606DFF1BFB5CF3C5FF58.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257756/files/figure.png	https://doi.org/10.5281/zenodo.11257756	FIGURE 25. Parastacus fluviatilis Ribeiro & Buckup in Ribeiro et al., 2016.A—­ Living specimen; B—­ Burrow opening (White arrow); C—­ Habitat, a creek in São José dos Ausentes municipality, state of Rio Grande do Sul, Brazil.	FIGURE 25. Parastacus fluviatilis Ribeiro & Buckup in Ribeiro et al., 2016.A—­ Living specimen; B—­ Burrow opening (White arrow); C—­ Habitat, a creek in São José dos Ausentes municipality, state of Rio Grande do Sul, Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7C606FFF1BF9DAF781FEE8.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257758/files/figure.png	https://doi.org/10.5281/zenodo.11257758	FIGURE 26. Parastacus caeruleodactylus Ribeiro & Araujo in Ribeiro et al., 2016: living specimens in aquarium. A—­ male specimen; B—­ female specimen.	FIGURE 26. Parastacus caeruleodactylus Ribeiro & Araujo in Ribeiro et al., 2016: living specimens in aquarium. A—­ male specimen; B—­ female specimen.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7E606FFF1BFE3CF22DFC02.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257767/files/figure.png	https://doi.org/10.5281/zenodo.11257767	FIGURE 27. Parastacus tuerkayi Ribeiro, Huber & Araujo in Ribeiro et al., 2017: living specimen in aquarium.	FIGURE 27. Parastacus tuerkayi Ribeiro, Huber & Araujo in Ribeiro et al., 2017: living specimen in aquarium.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257769/files/figure.png	https://doi.org/10.5281/zenodo.11257769	FIGURE 28. Parastacus pilicarpus Huber, Ribeiro & Araujo, 2018: living specimen in aquarium. Photo by Caio Feltrin.	FIGURE 28. Parastacus pilicarpus Huber, Ribeiro & Araujo, 2018: living specimen in aquarium. Photo by Caio Feltrin.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257686/files/figure.png	https://doi.org/10.5281/zenodo.11257686	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257688/files/figure.png	https://doi.org/10.5281/zenodo.11257688	FIGURE 5. Parastacus pugnax (Poeppig, 1835): A—­ epistome (UFRGS 2407); B—­ thoracic sternites and gonopores (UFRGS 726); C—­ thoracomere 8, caudal view (UFRGS 726); D—­ antennal scale, lateral view (UFRGS 726); E—­ mandible (UFRGS 726); F—­ third maxilliped, ventral view (UFRGS 726); G—­ third maxilliped, dorsal view (UFRGS 726); H—­ first pereiopod, lateral view (UFRGS 726); I—­ first pereiopod, dorsal view (UFRGS 726); J—­ second pereiopod, lateral view (UFRGS 726). Scale bars: A, C, D, H, I—­ 5 mm; B—­ 10 mm; F, G, J—­ 3.33 mm.	FIGURE 5. Parastacus pugnax (Poeppig, 1835): A—­ epistome (UFRGS 2407); B—­ thoracic sternites and gonopores (UFRGS 726); C—­ thoracomere 8, caudal view (UFRGS 726); D—­ antennal scale, lateral view (UFRGS 726); E—­ mandible (UFRGS 726); F—­ third maxilliped, ventral view (UFRGS 726); G—­ third maxilliped, dorsal view (UFRGS 726); H—­ first pereiopod, lateral view (UFRGS 726); I—­ first pereiopod, dorsal view (UFRGS 726); J—­ second pereiopod, lateral view (UFRGS 726). Scale bars: A, C, D, H, I—­ 5 mm; B—­ 10 mm; F, G, J—­ 3.33 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257690/files/figure.png	https://doi.org/10.5281/zenodo.11257690	FIGURE 6. Parastacus pilimanus (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 277); B—­ cephalon, dorsal view (UFRGS 277); C—­ cephalon, lateral view (UFRGS 277); D—­ female pleonal somites, dorsal view (UFRGS 277); E—­ first to third male pleonal pleura (UFRGS 277); F—­ first to third female pleonal pleura (UFRGS 277); G—­ tailfan (UFRGS 277). Scale bars: A, C, D, E—­ 1 cm; B, F, G—­ 5 mm.	FIGURE 6. Parastacus pilimanus (von Martens, 1869): A—­ habitus, dorsal view (UFRGS 277); B—­ cephalon, dorsal view (UFRGS 277); C—­ cephalon, lateral view (UFRGS 277); D—­ female pleonal somites, dorsal view (UFRGS 277); E—­ first to third male pleonal pleura (UFRGS 277); F—­ first to third female pleonal pleura (UFRGS 277); G—­ tailfan (UFRGS 277). Scale bars: A, C, D, E—­ 1 cm; B, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257694/files/figure.png	https://doi.org/10.5281/zenodo.11257694	FIGURE 7. Parastacus pilimanus (von Martens, 1869): A—­ epistome (UFRGS 277); B—­ thoracic sternites and gonopores (UFRGS 277); C—­ thoracomere 8, caudal view (UFRGS 277); D—­ antennal scale, lateral view (UFRGS 277); E—­ mandible (UFRGS 277); F—­ third maxilliped, ventral view (UFRGS 277); G—­ third maxilliped, dorsal view (paratype 4); H—­ first pereiopod, lateral view (UFRGS 277); I—­ first pereiopod, dorsal view (UFRGS 277); J—­ second pereiopod, lateral view (UFRGS 277). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 1 cm; D, E—­ 2.5 mm.	FIGURE 7. Parastacus pilimanus (von Martens, 1869): A—­ epistome (UFRGS 277); B—­ thoracic sternites and gonopores (UFRGS 277); C—­ thoracomere 8, caudal view (UFRGS 277); D—­ antennal scale, lateral view (UFRGS 277); E—­ mandible (UFRGS 277); F—­ third maxilliped, ventral view (UFRGS 277); G—­ third maxilliped, dorsal view (paratype 4); H—­ first pereiopod, lateral view (UFRGS 277); I—­ first pereiopod, dorsal view (UFRGS 277); J—­ second pereiopod, lateral view (UFRGS 277). Scale bars: A, C, F, G, I, J—­ 5 mm; B, H—­ 1 cm; D, E—­ 2.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE7F606EFF1BFD36F2C5FBDE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257698/files/figure.png	https://doi.org/10.5281/zenodo.11257698	FIGURE 8. Parastacus pilimanus (von Martens, 1869), living specimen and habitat:A—­ living specimen; B—­ habitat, wetland in the municipality of Uruguaiana, state of Rio Grande do Sul, Brazil; C—­ burrow opening with chimney. White arrow indicates burrow opening. Scale bar: A—­ 10 mm.	FIGURE 8. Parastacus pilimanus (von Martens, 1869), living specimen and habitat:A—­ living specimen; B—­ habitat, wetland in the municipality of Uruguaiana, state of Rio Grande do Sul, Brazil; C—­ burrow opening with chimney. White arrow indicates burrow opening. Scale bar: A—­ 10 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE606071FF1BFF38F650FDF6.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257771/files/figure.png	https://doi.org/10.5281/zenodo.11257771	FIGURE 29. Parastacus macanudo Huber, Rockhill, Araujo & Ribeiro, 2020: living specimen in nature.	FIGURE 29. Parastacus macanudo Huber, Rockhill, Araujo & Ribeiro, 2020: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE606070FF1BF977F55FFE04.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257773/files/figure.png	https://doi.org/10.5281/zenodo.11257773	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE616070FF1BFA48F55FF865.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257776/files/figure.png	https://doi.org/10.5281/zenodo.11257776	FIGURE 31. Parastacus gomesae Huber, Araujo & Ribeiro, 2022: living specimen in nature.	FIGURE 31. Parastacus gomesae Huber, Araujo & Ribeiro, 2022: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626073FF1BFB54F64BF9DE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257676/files/figure.png	https://doi.org/10.5281/zenodo.11257676	FIGURE 1. Morphological characters used for species description of the body parts of the freshwater crayfish genus Parastacus: A—­ habitus; B—­ Cephalon lateral view; C—­ first to third pleonal pleurae; D—­ epistome; E—­ thoracic sternites; F—­ thoracomere 8 caudal view. a1 = antennule, a2 = antenna, als = anterolateral section, aml = anteromedian lobe, Are = areola, as = antennal scale, bcg = branchiostegal groove, bl = bullar lobes, cg = cervical groove, Ct = Cephalothorax, di = diaresis, end = endopod, exo = exopod, ey = eye, fg = female gonopore, lg = longitudinal groove, lp = lateral process, ls = lateral spine, mcp = male cuticle partition, mg = male gonopore, mk = median keel, np = nephropore, pcg = postcervical groove, pls = posterolateral section, pp = protopod, p1 (che) = pereopod 1 (cheliped), p2 = pereopod 2, p3 = pereopod 3, p4 = pereopod 4, p5 = pereopod 5, Pl = pleon, poc = post orbital carina, ra = rostral apex, rc = rostral carina, ro = rostrum, rs = rostrum spine, soa = suborbital angle, sb = sternopleural bridge, SI, II, III = pleonal somite I, II and III, Te = telson, uro = uropod, va = vertical arm.	FIGURE 1. Morphological characters used for species description of the body parts of the freshwater crayfish genus Parastacus: A—­ habitus; B—­ Cephalon lateral view; C—­ first to third pleonal pleurae; D—­ epistome; E—­ thoracic sternites; F—­ thoracomere 8 caudal view. a1 = antennule, a2 = antenna, als = anterolateral section, aml = anteromedian lobe, Are = areola, as = antennal scale, bcg = branchiostegal groove, bl = bullar lobes, cg = cervical groove, Ct = Cephalothorax, di = diaresis, end = endopod, exo = exopod, ey = eye, fg = female gonopore, lg = longitudinal groove, lp = lateral process, ls = lateral spine, mcp = male cuticle partition, mg = male gonopore, mk = median keel, np = nephropore, pcg = postcervical groove, pls = posterolateral section, pp = protopod, p1 (che) = pereopod 1 (cheliped), p2 = pereopod 2, p3 = pereopod 3, p4 = pereopod 4, p5 = pereopod 5, Pl = pleon, poc = post orbital carina, ra = rostral apex, rc = rostral carina, ro = rostrum, rs = rostrum spine, soa = suborbital angle, sb = sternopleural bridge, SI, II, III = pleonal somite I, II and III, Te = telson, uro = uropod, va = vertical arm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626073FF1BFB54F64BF9DE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257678/files/figure.png	https://doi.org/10.5281/zenodo.11257678	FIGURE 2. Morphologicalcharacters used forspecies description of the appendages of the freshwatercrayfish genus Parastacus. A—­ antennal scale; B—­ mandible; C—­ third maxilliped, ventral view; D—­ cheliped, lateral view; E—­ cheliped, dorsal view; F—­ second pereiopod, lateral view; G—­ tailfan. ca = carpus, cd = crista dentata, cdc = cephalodistal cusp, cmp = cephalic molar process, cdc = cephalodistal cusp, da = dactylus, ddls = diaresis dorsolateral spines, dl = distal lobe, dm = distal margin, dpc = distoproximal cusp, dspa = dorsal surface of palm, en = endopod, enmc = endopod median carina, ex = exopod, exmc = exopod median carina, exls = exopod lateral spine, f = flagellum, ff = fixed finger, il = incisor lobe, im = inner margin, is = ischium, lg = longitudinal groove, lm = lateral margin, ls = lateral spine, me = merus, p = palp, pa = palm, pl = proximal lobe, pr = propodus, rt = row of tubercles, s = spine, se = setae, te = telson, t = tubercle, vspa = ventral surface of palm.	FIGURE 2. Morphologicalcharacters used forspecies description of the appendages of the freshwatercrayfish genus Parastacus. A—­ antennal scale; B—­ mandible; C—­ third maxilliped, ventral view; D—­ cheliped, lateral view; E—­ cheliped, dorsal view; F—­ second pereiopod, lateral view; G—­ tailfan. ca = carpus, cd = crista dentata, cdc = cephalodistal cusp, cmp = cephalic molar process, cdc = cephalodistal cusp, da = dactylus, ddls = diaresis dorsolateral spines, dl = distal lobe, dm = distal margin, dpc = distoproximal cusp, dspa = dorsal surface of palm, en = endopod, enmc = endopod median carina, ex = exopod, exmc = exopod median carina, exls = exopod lateral spine, f = flagellum, ff = fixed finger, il = incisor lobe, im = inner margin, is = ischium, lg = longitudinal groove, lm = lateral margin, ls = lateral spine, me = merus, p = palp, pa = palm, pl = proximal lobe, pr = propodus, rt = row of tubercles, s = spine, se = setae, te = telson, t = tubercle, vspa = ventral surface of palm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626073FF1BFB54F64BF9DE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257684/files/figure.png	https://doi.org/10.5281/zenodo.11257684	FIGURE 3. Parastacus pugnax (Poeppig, 1835)—­ Type of Astacus chilensis (MNHN-As 356).	FIGURE 3. Parastacus pugnax (Poeppig, 1835)—­ Type of Astacus chilensis (MNHN-As 356).	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626073FF1BFB54F64BF9DE.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257686/files/figure.png	https://doi.org/10.5281/zenodo.11257686	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	FIGURE 4. Parastacus pugnax (Poeppig, 1835): A—­ habitus, dorsal view (UFRGS 726); B—­ cephalon, dorsal view (UFRGS 726); C—­ cephalon, lateral view (UFRGS 726); D—­ female pleonal somites, dorsal view (UFRGS 2407); E—­ first to third male pleonal pleura (UFRGS 726); F—­ first to third female pleonal pleura (UFRGS 2407); G—­ tailfan (UFRGS 726). Scale bars: A, E—­ 10 mm; B, C, D, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626076FF1BF909F416FF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257778/files/figure.png	https://doi.org/10.5281/zenodo.11257778	FIGURE 32. Parastacus bah sp. nov., holotype (MZUSP 45367): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, D—­ 5 mm; B, C, E, 2.5 mm.	FIGURE 32. Parastacus bah sp. nov., holotype (MZUSP 45367): A—­ habitus, dorsal view; B—­ cephalon, dorsal view; C—­ cephalon, lateral view; D—­ first to third male pleonal pleura; E—­ tailfan. Scale bars: A, D—­ 5 mm; B, C, E, 2.5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626076FF1BF909F416FF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257780/files/figure.png	https://doi.org/10.5281/zenodo.11257780	FIGURE 33. Parastacus bah sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45367); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45367); D—­ antennal scale, lateral view (holotype, MZUSP 45367); E—­ mandible (paratype 1, UFRGS 5497); F—­ third maxilliped, ventral view (paratype 1, UFRGS 5497); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 5497); H—­ first pereiopod, lateral view (holotype); F—­ first pereiopod, dorsal view (holotype); G—­ second pereiopod, lateral view (holotype). Scale bars: A, C—­ 3.3 mm; B—­ 5 mm; D—­ 1.5 mm; E—­ 1 mm; H, I, J—­ 2.5 mm; F, G—­ 2 mm.	FIGURE 33. Parastacus bah sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45367); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45367); D—­ antennal scale, lateral view (holotype, MZUSP 45367); E—­ mandible (paratype 1, UFRGS 5497); F—­ third maxilliped, ventral view (paratype 1, UFRGS 5497); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 5497); H—­ first pereiopod, lateral view (holotype); F—­ first pereiopod, dorsal view (holotype); G—­ second pereiopod, lateral view (holotype). Scale bars: A, C—­ 3.3 mm; B—­ 5 mm; D—­ 1.5 mm; E—­ 1 mm; H, I, J—­ 2.5 mm; F, G—­ 2 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626076FF1BF909F416FF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257782/files/figure.png	https://doi.org/10.5281/zenodo.11257782	FIGURE 34. Parastacus bah sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	FIGURE 34. Parastacus bah sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626076FF1BF909F416FF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257773/files/figure.png	https://doi.org/10.5281/zenodo.11257773	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE626076FF1BF909F416FF74.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257776/files/figure.png	https://doi.org/10.5281/zenodo.11257776	FIGURE 31. Parastacus gomesae Huber, Araujo & Ribeiro, 2022: living specimen in nature.	FIGURE 31. Parastacus gomesae Huber, Araujo & Ribeiro, 2022: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257784/files/figure.png	https://doi.org/10.5281/zenodo.11257784	FIGURE 35. Parastacus heterochaelis sp. nov., holotype and paratypes: A—­ habitus, dorsal view (holotype, MZUSP 45368); B—­ cephalon, dorsal view (paratype 5, UFRGS 1359); C—­ cephalon, lateral view (paratype 5, UFRGS 1359); D—­ female pleonal somites, dorsal view (paratype 4, UFRGS 6439); E—­ first to third male pleonal pleura (holotype); F—­ first to third female pleonal pleura (paratype 4, UFRGS 6439); G—­ tailfan (paratype 2, UFRGS 5865). Scale bars: A—­ 10 mm; B, C, D, E, F, G—­ 5 mm.	FIGURE 35. Parastacus heterochaelis sp. nov., holotype and paratypes: A—­ habitus, dorsal view (holotype, MZUSP 45368); B—­ cephalon, dorsal view (paratype 5, UFRGS 1359); C—­ cephalon, lateral view (paratype 5, UFRGS 1359); D—­ female pleonal somites, dorsal view (paratype 4, UFRGS 6439); E—­ first to third male pleonal pleura (holotype); F—­ first to third female pleonal pleura (paratype 4, UFRGS 6439); G—­ tailfan (paratype 2, UFRGS 5865). Scale bars: A—­ 10 mm; B, C, D, E, F, G—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257786/files/figure.png	https://doi.org/10.5281/zenodo.11257786	FIGURE 36. Parastacus heterochaelis sp. nov., holotype and paratypes:A—­ epistome (paratype 5, UFRGS 1359); B—­ thoracic sternites and gonopores (paratype 5, UFRGS 1359); C—­ thoracomere 8, caudal view (holotype, MZUSP 45368); D—­ antennal scale, lateral view (paratype 2, UFRGS 5865); E—­ mandible (paratype 2, UFRGS 5865); F—­ third maxilliped, ventral view (paratype 2, UFRGS 5865); G—­ third maxilliped, dorsal view (paratype 2, UFRGS 5865); H—­ first pereiopod, lateral view (holotype, MZUSP 45368); I—­ first pereiopod, dorsal view (holotype, MZUSP 45368); J—­ second pereiopod, lateral view (holotype, MZUSP 45368); Scale bars: A—­ 2 mm; B, H, I—­ 5 mm; D, F, G—­ 1,5 mm; C, J—­ 2.5 mm; E—­ 1 mm.	FIGURE 36. Parastacus heterochaelis sp. nov., holotype and paratypes:A—­ epistome (paratype 5, UFRGS 1359); B—­ thoracic sternites and gonopores (paratype 5, UFRGS 1359); C—­ thoracomere 8, caudal view (holotype, MZUSP 45368); D—­ antennal scale, lateral view (paratype 2, UFRGS 5865); E—­ mandible (paratype 2, UFRGS 5865); F—­ third maxilliped, ventral view (paratype 2, UFRGS 5865); G—­ third maxilliped, dorsal view (paratype 2, UFRGS 5865); H—­ first pereiopod, lateral view (holotype, MZUSP 45368); I—­ first pereiopod, dorsal view (holotype, MZUSP 45368); J—­ second pereiopod, lateral view (holotype, MZUSP 45368); Scale bars: A—­ 2 mm; B, H, I—­ 5 mm; D, F, G—­ 1,5 mm; C, J—­ 2.5 mm; E—­ 1 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257788/files/figure.png	https://doi.org/10.5281/zenodo.11257788	FIGURE 37. Parastacus heterochaelis sp. nov., habitat and living specimens. A—­ habitat, peatland in the municipality of Viamão, state of Rio Grande do Sul; B—­ chimney; C—­ male (right) and ovigerous female (left) living specimens caught in the same burrow; D—­ ovigerous female showing eggs attached to pleopods; E—­ living specimen. Scale bar: E—­ 1 cm.	FIGURE 37. Parastacus heterochaelis sp. nov., habitat and living specimens. A—­ habitat, peatland in the municipality of Viamão, state of Rio Grande do Sul; B—­ chimney; C—­ male (right) and ovigerous female (left) living specimens caught in the same burrow; D—­ ovigerous female showing eggs attached to pleopods; E—­ living specimen. Scale bar: E—­ 1 cm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257794/files/figure.png	https://doi.org/10.5281/zenodo.11257794	FIGURE 38. Parastacus heterochaelis sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	FIGURE 38. Parastacus heterochaelis sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257780/files/figure.png	https://doi.org/10.5281/zenodo.11257780	FIGURE 33. Parastacus bah sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45367); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45367); D—­ antennal scale, lateral view (holotype, MZUSP 45367); E—­ mandible (paratype 1, UFRGS 5497); F—­ third maxilliped, ventral view (paratype 1, UFRGS 5497); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 5497); H—­ first pereiopod, lateral view (holotype); F—­ first pereiopod, dorsal view (holotype); G—­ second pereiopod, lateral view (holotype). Scale bars: A, C—­ 3.3 mm; B—­ 5 mm; D—­ 1.5 mm; E—­ 1 mm; H, I, J—­ 2.5 mm; F, G—­ 2 mm.	FIGURE 33. Parastacus bah sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45367); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45367); D—­ antennal scale, lateral view (holotype, MZUSP 45367); E—­ mandible (paratype 1, UFRGS 5497); F—­ third maxilliped, ventral view (paratype 1, UFRGS 5497); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 5497); H—­ first pereiopod, lateral view (holotype); F—­ first pereiopod, dorsal view (holotype); G—­ second pereiopod, lateral view (holotype). Scale bars: A, C—­ 3.3 mm; B—­ 5 mm; D—­ 1.5 mm; E—­ 1 mm; H, I, J—­ 2.5 mm; F, G—­ 2 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE67607CFF1BF8E5F5D4FD95.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257782/files/figure.png	https://doi.org/10.5281/zenodo.11257782	FIGURE 34. Parastacus bah sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	FIGURE 34. Parastacus bah sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257798/files/figure.png	https://doi.org/10.5281/zenodo.11257798	FIGURE 39. Parastacus manezinho sp. nov., holotype and paratypes: A—­ habitus, dorsal view (holotype, MZUSP 45369); B—­ cephalon, dorsal view (holotype, MZUSP 45369); C—­ cephalon, lateral view (holotype, MZUSP 45369); D—­ female pleonal somites, dorsal view (paratype 1, UFRGS 6489); E—­ first to third male pleonal pleura (holotype); F—­ first to third female pleonal pleura (paratype 1, UFRGS 6489); G—­ tailfan (holotype, MZUSP 45369). Scale bars: A—­ 10 mm; B, E, F, G—­ 5 mm; C—­ 2 mm.	FIGURE 39. Parastacus manezinho sp. nov., holotype and paratypes: A—­ habitus, dorsal view (holotype, MZUSP 45369); B—­ cephalon, dorsal view (holotype, MZUSP 45369); C—­ cephalon, lateral view (holotype, MZUSP 45369); D—­ female pleonal somites, dorsal view (paratype 1, UFRGS 6489); E—­ first to third male pleonal pleura (holotype); F—­ first to third female pleonal pleura (paratype 1, UFRGS 6489); G—­ tailfan (holotype, MZUSP 45369). Scale bars: A—­ 10 mm; B, E, F, G—­ 5 mm; C—­ 2 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257800/files/figure.png	https://doi.org/10.5281/zenodo.11257800	FIGURE 40. Parastacus manezinho sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45369); B—­ thoracic sternites and gonopores (holotype, MZUSP 45369); C—­ thoracomere 8, caudal view (holotype, MZUSP 45369); D—­ antennal scale, lateral view (paratype 2, UFRGS 6490); E—­ mandible (paratype 2, UFRGS 6490); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6489); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 6489); H—­ first pereiopod, lateral view (holotype); I—­ first pereiopod, dorsal view (holotype, MZUSP 45369); J—­ second pereiopod, lateral view (holotype). Scale bars: A, J, C—­ 3,33 mm; B, I—­ 5 mm; F, G—­ 2,5 mm; E, D—­ 1,5 mm; H—­ 10 mm.	FIGURE 40. Parastacus manezinho sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45369); B—­ thoracic sternites and gonopores (holotype, MZUSP 45369); C—­ thoracomere 8, caudal view (holotype, MZUSP 45369); D—­ antennal scale, lateral view (paratype 2, UFRGS 6490); E—­ mandible (paratype 2, UFRGS 6490); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6489); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 6489); H—­ first pereiopod, lateral view (holotype); I—­ first pereiopod, dorsal view (holotype, MZUSP 45369); J—­ second pereiopod, lateral view (holotype). Scale bars: A, J, C—­ 3,33 mm; B, I—­ 5 mm; F, G—­ 2,5 mm; E, D—­ 1,5 mm; H—­ 10 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257804/files/figure.png	https://doi.org/10.5281/zenodo.11257804	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257788/files/figure.png	https://doi.org/10.5281/zenodo.11257788	FIGURE 37. Parastacus heterochaelis sp. nov., habitat and living specimens. A—­ habitat, peatland in the municipality of Viamão, state of Rio Grande do Sul; B—­ chimney; C—­ male (right) and ovigerous female (left) living specimens caught in the same burrow; D—­ ovigerous female showing eggs attached to pleopods; E—­ living specimen. Scale bar: E—­ 1 cm.	FIGURE 37. Parastacus heterochaelis sp. nov., habitat and living specimens. A—­ habitat, peatland in the municipality of Viamão, state of Rio Grande do Sul; B—­ chimney; C—­ male (right) and ovigerous female (left) living specimens caught in the same burrow; D—­ ovigerous female showing eggs attached to pleopods; E—­ living specimen. Scale bar: E—­ 1 cm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257794/files/figure.png	https://doi.org/10.5281/zenodo.11257794	FIGURE 38. Parastacus heterochaelis sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	FIGURE 38. Parastacus heterochaelis sp. nov., distribution in the state of Rio Grande do Sul, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE6E6002FF1BFF38F580FE20.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257773/files/figure.png	https://doi.org/10.5281/zenodo.11257773	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	FIGURE 30. Parastacus guapo Huber, Araujo & Ribeiro, 2022: living specimen in nature.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE136006FF1BFA70F41AF86D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257808/files/figure.png	https://doi.org/10.5281/zenodo.11257808	FIGURE 43. Parastacus quasimodo sp. nov., A—­ habitus, dorsal view (holotype, MZUSP 45370); B—­ cephalon, dorsal view (holotype, MZUSP 45370); C—­ cephalon, lateral view (holotype, MZUSP 45370); D—­ first to third pleonal pleura (holotype); E—­ tailfan (holotype). Scale bars: A—­ 1 cm; B, C, D, E—­ 5 mm.	FIGURE 43. Parastacus quasimodo sp. nov., A—­ habitus, dorsal view (holotype, MZUSP 45370); B—­ cephalon, dorsal view (holotype, MZUSP 45370); C—­ cephalon, lateral view (holotype, MZUSP 45370); D—­ first to third pleonal pleura (holotype); E—­ tailfan (holotype). Scale bars: A—­ 1 cm; B, C, D, E—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE136006FF1BFA70F41AF86D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257810/files/figure.png	https://doi.org/10.5281/zenodo.11257810	FIGURE 44. Parastacus quasimodo sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45370); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45370); D—­ antennal scale, lateral view (paratype 2, UFRGS 6440); E—­ mandible (paratype 2, UFRGS 6440); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6440); G—­ third maxilliped, dorsal view (paratype 1); H—­ first pereiopod, lateral view (holotype, MZUSP 45370); I—­ first pereiopod, dorsal view (holotype, MZUSP 45370); J—­ second pereiopod, lateral view (holotype, MZUSP 45370). Scale bars: A, C—­ 2.5 mm; B, I—­ 5 mm; D, E—­ 2 mm; F, G—­ 5 mm; H, J—­ 1 cm.	FIGURE 44. Parastacus quasimodo sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45370); B—­ thoracic sternites and gonopores (holotype); C—­ thoracomere 8, caudal view (holotype, MZUSP 45370); D—­ antennal scale, lateral view (paratype 2, UFRGS 6440); E—­ mandible (paratype 2, UFRGS 6440); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6440); G—­ third maxilliped, dorsal view (paratype 1); H—­ first pereiopod, lateral view (holotype, MZUSP 45370); I—­ first pereiopod, dorsal view (holotype, MZUSP 45370); J—­ second pereiopod, lateral view (holotype, MZUSP 45370). Scale bars: A, C—­ 2.5 mm; B, I—­ 5 mm; D, E—­ 2 mm; F, G—­ 5 mm; H, J—­ 1 cm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE136006FF1BFA70F41AF86D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257812/files/figure.png	https://doi.org/10.5281/zenodo.11257812	FIGURE 45. Parastacus quasimodo sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	FIGURE 45. Parastacus quasimodo sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE136006FF1BFA70F41AF86D.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257804/files/figure.png	https://doi.org/10.5281/zenodo.11257804	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257814/files/figure.png	https://doi.org/10.5281/zenodo.11257814	FIGURE 46. Parastacus rudolphi sp. nov., holotype:A—­ habitus, dorsal view (holotype); B—­ cephalon, dorsal view (holotype); C—­ cephalon, lateral view (holotype); D—­ first to third male pleonal pleura (holotype, MZUSP 45371); E—­ tailfan (holotype). Scale bars: A—­ 1 cm; B, C, D, E—­ 5 mm.	FIGURE 46. Parastacus rudolphi sp. nov., holotype:A—­ habitus, dorsal view (holotype); B—­ cephalon, dorsal view (holotype); C—­ cephalon, lateral view (holotype); D—­ first to third male pleonal pleura (holotype, MZUSP 45371); E—­ tailfan (holotype). Scale bars: A—­ 1 cm; B, C, D, E—­ 5 mm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257818/files/figure.png	https://doi.org/10.5281/zenodo.11257818	FIGURE 47. Parastacus rudolphi sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45371); B—­ thoracic sternites and gonopores (holotype, MZUSP 45371); C—­ thoracomere 8, caudal view (holotype, MZUSP 45371); D—­ antennal scale, lateral view (paratype 2, UFRGS 6476, MZUSP XXXXX); E—­ mandible (paratype 2); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6476); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 6476); H—­ first pereiopod, lateral view (holotype, MZUSP 45371); I—­ first pereiopod, dorsal view (holotype); J—­ second pereiopod, lateral view (holotype MZUSP 45371). Scale bars: A, C—­ 2.5 mm; B, I—­ 5 mm; D, E—­ 2 mm; F, G—­ 5 mm; H, J—­ 1 cm.	FIGURE 47. Parastacus rudolphi sp. nov., holotype and paratypes: A—­ epistome (holotype, MZUSP 45371); B—­ thoracic sternites and gonopores (holotype, MZUSP 45371); C—­ thoracomere 8, caudal view (holotype, MZUSP 45371); D—­ antennal scale, lateral view (paratype 2, UFRGS 6476, MZUSP XXXXX); E—­ mandible (paratype 2); F—­ third maxilliped, ventral view (paratype 1, UFRGS 6476); G—­ third maxilliped, dorsal view (paratype 1, UFRGS 6476); H—­ first pereiopod, lateral view (holotype, MZUSP 45371); I—­ first pereiopod, dorsal view (holotype); J—­ second pereiopod, lateral view (holotype MZUSP 45371). Scale bars: A, C—­ 2.5 mm; B, I—­ 5 mm; D, E—­ 2 mm; F, G—­ 5 mm; H, J—­ 1 cm.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257820/files/figure.png	https://doi.org/10.5281/zenodo.11257820	FIGURE 48. Parastacus rudolphi sp. nov., habitat. A—­ habitat, stream in Morro da Borússia, state of Rio Grande do Sul, Brazil; B—­ single burrow opening (white arrow).	FIGURE 48. Parastacus rudolphi sp. nov., habitat. A—­ habitat, stream in Morro da Borússia, state of Rio Grande do Sul, Brazil; B—­ single burrow opening (white arrow).	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257824/files/figure.png	https://doi.org/10.5281/zenodo.11257824	FIGURE 49. Parastacus rudolphi sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	FIGURE 49. Parastacus rudolphi sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257804/files/figure.png	https://doi.org/10.5281/zenodo.11257804	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	FIGURE 42. Parastacus manezinho sp. nov., distribution in the state of Santa Catarina, southern Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
E0222776BE18600EFF1BFB76F558FD57.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/11257812/files/figure.png	https://doi.org/10.5281/zenodo.11257812	FIGURE 45. Parastacus quasimodo sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	FIGURE 45. Parastacus quasimodo sp. nov., distribution in the state of Rio Grande do Sul, Brazil.	2024-05-23	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz		Zenodo	biologists	Ribeiro, Felipe Bezerra;Araujo, Paula Beatriz			
