taxonID	type	format	identifier	references	title	description	created	creator	contributor	publisher	audience	source	license	rightsHolder	datasetID
294B256410778618D69BFB33B4C6FB59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B256410778618D69BFB33B4C6FB59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458835/files/figure.png	https://doi.org/10.5281/zenodo.5458835	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B256410758618D441FB13B073FE59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B256410758618D441FB13B073FE59.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B256410758618D693FE13B09EFB67.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B256410758618D693FE13B09EFB67.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641075861ED6E6FAFDB72CF8E3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641075861ED6E6FAFDB72CF8E3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458835/files/figure.png	https://doi.org/10.5281/zenodo.5458835	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641075861ED6E6FAFDB72CF8E3.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641073861ED5E6F879B10FF7BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641073861ED5E6F879B10FF7BB.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641070861DD5D1FF53B1B2FBB9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641070861DD5D1FF53B1B2FBB9.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641070861CD662FBB3B65AFA79.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458833/files/figure.png	https://doi.org/10.5281/zenodo.5458833	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	Fig. 1. Distribution map of Pterocyclos species examined in this study. The numbered locality names are detailed in Table 1. The approximate type locality of Pterocyclos subalatus, and Pterocyclos umbraticus, are indicated by locality numbers 3 and 5, respectively.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641070861CD662FBB3B65AFA79.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458835/files/figure.png	https://doi.org/10.5281/zenodo.5458835	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	Fig. 2. A–C, General anatomy of Pterocyclos frednaggsi Sutcharit & Panha, new species, from Gua Musang, Kelantan, Malaysia CUMZ 4944, showing: A, right side of male with testis and external penis; B, right side of female with ovary and vaginal groove; C, left side of female with lung cavity and heart. D, E, Radula morphology of: D, Pterocyclos spaleotes, topotype specimen CUMZ 4585; E, Pterocyclos frednaggsi Sutcharit & Panha, new species, paratype CUMZ 4581.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
294B25641070861CD662FBB3B65AFA79.taxon	http://purl.org/dc/dcmitype/StillImage	image/png	https://zenodo.org/record/5458837/files/figure.png	https://doi.org/10.5281/zenodo.5458837	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	Fig. 3. A–D, Shell and operculum of Pterocyclos rupestris: A, lectotype UMZC 2359.1; B, paralectotype UMZC 2359.2; C, syntype of var. 3 UMZC 2359.3; D, operculum from same lot of the paralectotype (showing top, side and bottom views). E, F, Specimens of P. blandi from Langkawi Island, Perlis, Malaysia CUMZ 4582. G, Holotype UMZC 1032 of P. subalatus. H–J, Pterocyclos spaleotes: H, lectotype NMW 1955.158.01107, I, paralectotype NMW 1981.118.02705; J, topotype specimen CUMZ 4585. K, Holotype ZMA Moll. 135622 of P. umbraticus. L–P, Pterocyclos diluvium Sutcharit & Panha, new species: L, holotype CUMZ 4595, M, paratype CUMZ 4588, N, specimen from Gua Cenderawasih, Perlis, Malaysia CUMZ 4592; and O, P, specimens from Tam Tone-din, Kuan-Don, Satun, Thailand CUMZ 4590 showing a: O, uniform whitish shell; and P, dark brown colour patterns. Q–S, Pterocyclos frednaggsi Sutcharit & Panha, new species: Q, holotype CUMZ 4594; R, paratype CUMZ 4581; S, specimen from Gua Pulai, Gua Musang, Kelantan, Malaysia CUMZ 4597.	2014-05-30	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak		Zenodo	biologists	Sutcharit, Chirasak;Tongkerd, Piyoros;Panha, Somsak			
