taxonID	type	description	language	source
03E48782B2617105FF540CD63614FA24.taxon	materials_examined	Material examined. Neotype female, (MNHN-IU- 2011 - 6056), Cuba, leg. P. Serre, 1909; Others: 2 females (MNHN-Na 610, MNHN-Na 613); 1 male (MNHN-Na 612), Cuba, leg. P. Serre, 1909; 1 male, cl 4.1 mm; 2 ov. females, cl 5.8 – 6.7 (MNHN-IU- 2011 - 6066), Río Guanajibo, Puerto Rico; 1 ov. female, cl 6.2 (MNHN-IU- 2011 - 6065), Río Guanajibo, Puerto Rico; 2 ov. females, cl 6.2 – 6.3 mm, (MNHN-IU- 2011 - 6064), Río Grande de Manatí, Puerto Rico; 1 ov. female, cl 6.7 (MNHN-IU- 2011 - 6062), Río Espirutu Santo, Puerto Rico, leg. B. D. Cook, J. Hughes and P. Hernandez-Garcia, February 2006; 1 male, cl 3.39 mm, (MNHN-IU- 2011 - 6063), Oropuche River, Trinidad, leg. C. Rogers.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2617105FF540CD63614FA24.taxon	diagnosis	Diagnosis. Rostrum (Fig. 3 A, 3 B) short, reaching near to end of basal segment of antennular peduncle, 0.22 – 0.29 times as long as carapace, armed dorsally with 7 – 9 teeth including 0 – 2 (most 0) on carapace posterior to orbital margin, 1 or 2 ventral teeth. Pterygostomial angle broadly rounded. Inferior orbital angle fused with antennal spine. Antennular peduncle 0.41 – 0.52 times as long as carapace, with a very small (0.15 – 0.21 times as long as second segment of antennular peduncle) or rudimentary tooth. Stylocerite 0.79 – 0.88 times as long as the basal segment of antennular peduncle. Incisor process of mandible (Fig. 3 M) ending in irregular teeth, molar process truncated. Lower lacinia of maxillula (Fig. 3 L) broadly subrectangular, upper lacinia elongate, with numerous distinct teeth on inner margin, palp slender with few simple setae at tip. Upper endites of maxilla (Fig. 3 K) subdivided, palp slender, scaphognathite tapering posteriorly, fringed with long, curved setae at posterior margin. Palp of first maxilliped (Fig. 3 I, J) ending in an elongated triangular projection. Podobranch on second maxilliped (Fig. 3 H) well developed. Third maxilliped (Fig. 3 G) with 1 well developed and 1 rudimentary arthrobranch, ultimate segment as long as penultimate segment. Pleurobranchs present on first to fourth pereiopod. First pereiopod without arthrobranch. Well developed epipods present on third maxilliped and first 3 pereiopods. Carpus of first pereiopod (Fig. 4 O) 0.76 – 1.00 times as long as wide, distally excavated; chela 2.78 – 3.75 times as long as wide; dactylus 5.56 – 8.18 times as long as wide; tips of fingers rounded, no visible palm. Merus of first pereiopod 0.79 – 0.87 times as long as chela and 1.36 – 1.67 times long as carpus. Carpus of second pereiopod Fig. 4 P) 1.06 – 1.08 times as long as wide; chela 2.48 – 2.83 times as long as wide, 1.72 – 1.95 times length of carpus; dactylus 5.54 – 5.83 times long as wide; tips of fingers rounded. Merus of second pereiopod 1.08 – 1.21 times as long as chela and 2.08 – 2.11 as times long as carpus. Dactylus of third pereiopod (Fig. 4 Q-T) 1.85 – 3.17 times as long as wide (terminal spine included), terminating in 1 large claw and 4 – 5 spines on flexor margin, second spine very small; propodus 5.29 – 7.86 times long as wide, 2.89 – 3.36 times as long as dactylus. Fifth pereiopod (Fig. 4 U, V) slender, dactylus 2.63 – 3.30 times as long as wide (terminal spine included), with 1 large claw and 24 – 43 spines on flexor margin (most 36 - 38); propodus 7.80 – 11.14 times as long as wide, 3.55 – 4.59 long as dactylus. Endopod of male first pleopod (Fig. 4 W) elongated, 2.0 times as long as proximal width. Appendix interna strong, 0.69 long as first endopod. Endopod of male second pleopod (Fig. 4 X) 4.76 as long as wide. Appendix masculina (Fig. 4 X, 7 B) 0.84 as long as endopod. Appendix interna of second pleopod reaching to 0.62 length of appendix masculina. Spinulation of appendix masculina near distal end, tip of appendix interna not reaching to the spinulated part of appendix masculina. Sixth abdominal segment 0.38 – 0.43 times length of carapace. Telson (Fig. 3 E, F) 2.29 – 2.48 times as long as proximally wide, posterior margin rounded, with median projection, with 5 – 7 pairs of dorsal and 1 pair of dorsolateral spinules; distal end with 7 – 8 pairs spines, 6 – 7 intermediate pair with fine bristles, longer and thinner than lateral spines. Preanal carina (Fig. 3 C) rounded, with distinctly tooth. Uropodal diaeresis with 20 – 23 movable spinules. Egg size of overigerous females 0.28 – 0.35 x 0.48 – 0.58 mm.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2617105FF540CD63614FA24.taxon	distribution	Distribution. Micratya poeyi is known from Great and Lesser Antilles: Cuba, Jamaica, Puerto Rico, Dominica, Martinique. A single ovigerous female was collected by D. P. Kelso in Costa Rica in 1964. F. A. Chace jr. (1983) reported Micratya poeyi from Panama as well Abele & Kim (1989) and Torati et al. (2011).	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2617105FF540CD63614FA24.taxon	discussion	Remarks. The original type specimen described by Guérin-Méneville originated from a collection of Cuban material without further specification. The description as Atya poeyi by Guérin-Méneville comprises only a few sentences without accurate information on body proportions or details on spinulation of appendages. Most of the collections described by F. E. Guérin-Méneville are deposited in the Academy of Natural Sciences of Philadelphia but M. poeyi is not cataloged here (Spamer & Bogan, 1994). In the Oxford University Museum of Natural History, where a part of the collections are also deposited, no specimen of this species could be found (S. De Grave, personal communication). Two attempts to locate this type material at the Muséum national d’Histoire naturelle Paris were also unsuccessful (Laure Corbari & Paula Martin Lefevre, personal communication). Thus the type series seem to be lost. To stabilize taxonomy, a neotype was designated here for a specimen selected from the Cuban collections of P. Serre, deposited in the Muséum national d’Histoire naturelle Paris. Specimens from this collection had also been used by E. - L. Bouvier for his studies, which resulted in the description of the genus Micratya. The examined specimens of Micratya poeyi indicate a sexual dimorphism. In addition to the smaller body size of males (cl. 3.65 – 4.1 in males vs. 6.2 – 6.7 in females), the two sexes differ in proportions of propodus on third pereiopod (7.86 times as long as wide in males vs. 5.29 – 6.00 in females); dactylus on third pereiopod (3.17 times as long as wide in males vs. 1.85 – 2.27 times in female) and the propodus on fifth pereiopod (11.14 times as long as wide vs. 7.80 – 9.36). This is the first time that a sexual dimorphism in Micratya poeyi has been reported.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	materials_examined	Material examined. Holotype ov. female, cl 4.9 mm, tl 16.6 mm (MNHN-IU- 2011 - 6057), Río Guayanés, Puerto Rico; Paratypes 1 female, cl 3.5 mm (MNHN-IU- 2011 - 6058), Río Guayanés, Puerto Rico; 1 female, cl 4.9 mm (MNHN-IU- 2011 - 6059), Río Grande de Manatí, Puerto Rico; 1 ov. female, cl 5.0 mm (OUMNH. ZC- 2012.05.001), Río Guayanés, Puerto Rico; Others 2 males, cl 3.1 – 3.7 mm, 6 females, cl 3.1 – 4.9 mm (MNHN-IU- 2011 - 6060) Río Coamo, Puerto Rico; 1 male, cl 4.0 mm, 4 females, cl 3.9 – 5.3 mm (MNHN-IU- 2011 - 6061) Río Guanajibo, Puerto Rico; 6 females, cl 3.9 – 4.9 mm, 6 ov. females 4.2 – 4.8 mm (OUMNH. ZC- 2012.05.002), Río Guayanés, Puerto Rico; 2 males, cl 3.1 – 3.3 mm, 1 ov. female, cl 6.6 mm, 6 females, cl. 4.1 – 5.2 mm (OUMNH. ZC- 2012.05.003), Río Coamo, Puerto Rico; 1 male, cl 4.0 mm (OUMNH. ZC- 2012.05.004), Río Coamo, Puerto Rico; leg. B. D. Cook, J. Hughes and P. Hernandez-Garcia, February 2006.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	diagnosis	Diagnosis. Rostrum (Fig. 5 A – B) short, reaching near to end of basal segment of antennular peduncle, 0.21 – 0.31 times as long as carapace, armed dorsally with 3 to 9 (most 5 – 7) teeth without teeth on carapace posterior to orbital margin, 0 to 2 ventral teeth (most 1 – 2). Chela of first pereiopod (Fig. 6 P) 2.55 – 2.84 as long as wide, dactylus 5.10 – 6.00 times as long as wide; carpus 0.89 – 0.97 times as long as wide. Chela of second pereiopod (Fig. 6 Q) 2.20 – 2.63 times as long as wide, dactylus 5.36 – 6.00 times as long wide; carpus 0.94 – 1.10 times as long as wide. Propodus of fifth pereiopod (Fig. 6 T – U) 6.45 – 9.33 times long as wide; dactylus 0.25 – 0.40 long as propodus, dactylus with 1 large claw and 17 – 30 spines on flexor margin (most 17 – 22). Endopod of male first pleopod (Fig. 6 V) 2 times as long as proximal width, appendix interna strong. Preanal carina (Fig. 5 D) rounded, with a distinct tooth. Uropodal diaeresis (Fig. 5 E) with 16 – 18 movable spinules.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	description	Description. Rostrum (Fig. 5 A – B) short, reaching near to end of basal segment of antennular peduncle, 0.21 – 0.31 times as long as carapace, armed dorsally with 3 to 9 (mostly 5 – 7) teeth without teeth on carapace posterior to orbital margin, 0 to 2 ventral teeth (mostly 1 – 2); rostral formula: 0 + 3 – 9 / 0 – 2. Inferior orbital angle fused with antennal spine. Pterygostomial angle broadly rounded. Antennular peduncle 0.39 – 0.46 times as long as carapace, second segment 0.30 – 0.35 times length of basal segment, third segment 0.67 – 0.92 times as length of second segment. Stylocerite 0.75 – 0.90 times as long as basal segment of antennular peduncle. Scaphocerite (Fig. 5 C) 2.41 times as long as wide. Sixth abdominal somite 0.38 – 0.46 times length of carapace, 1.12 – 1.34 times as long as fifth somite, 0.80 – 0.91 shorter than telson. Telson (Figs. 5 F – G) 1.92 – 2.35 times as long as proximally wide, distal margin broadly rounded, with median projection, with 5 or 6 pairs of dorsal and 1 pair of dorsolateral spinules, distal end with 10 – 12 spines, intermediate spines with fine bristles and longer than lateral pair. Preanal carina (Fig. 5 D) rounded, with a distinct tooth. Uropodal diaeresis (Fig. 5 E) with 16 – 18 movable spinules. Incisor process of mandible (Fig. 5 O) ending in irregular teeth, molar process truncated. Lower lacinia of maxillula (Fig. 5 N) broadly subrectangular, upper lacinia elongate, with numerous distinct teeth on inner margin, palp slender with few simple setae at tip. Upper endites of maxilla (Fig. 5 L) subdivided, palp slender, scaphognathite tapering posteriorly, fringed with long, curved setae at posterior margin. Palp of first maxilliped (Fig. 5 J – K) ending in an elongated triangular projection. Podobranch on second maxilliped (Fig. 5 I) well developed. Third maxilliped (Fig. 5 H) with 1 well developed and 1 rudimentary arthrobranch, ending in a rounded tip in most specimens (a short distal spine is visible in one specimen), ultimate segment as long as penultimate segment. Pleurobranchs present on first to fourth pereiopod. First pereiopod without arthrobranch. Well developed epipods present on third maxilliped and first 3 pereiopods. Chela of first pereiopod (Fig. 5 P) 2.55 – 2.84 as long as wide, 1.54 – 1.76 times length of carpus; dactylus 5.10 – 6.00 times as long as wide, no visible palm; carpus 0.89 – 0.97 times as long as wide, distally excavated, 0.64 – 0.74 times length of merus. Merus 0.84 – 0.91 times as long as chela. Chela of second pereiopod 2.20 – 2.63 times as long as wide, 1.62 – 2.10 times length of carpus; dactylus 5.36 – 6.00 times as long as wide, no visible palm; carpus 0.94 – 1.10 times as long as wide, distally excavated, 0.48 – 0.60 times length of merus; merus 0.98 – 1.04 times as long as chela. Third pereiopod (Figs. 6 R – S) slender, propodus 4.15 – 5.63 times as long as wide, 2.16 – 2.64 times as long as dactylus; dactylus 2.21 – 3.17 times as long as wide (terminal spine included), terminating in one large claw with 4 or 5 accessory spines on flexor margin, second spine very small; carpus 2.86 – 3.17 times as long as wide, 0.84 – 0.93 times as long as propodus, 0.43 – 0.46 times as long as merus; merus 4.32 – 4.79 times as long as wide, 2.16 – 2.30 times length of carpus. Fifth pereiopod slender (Figs. 6 T – U), propodus 6.45 – 9.33 times as long as wide, dactylus 0.25 – 0.40 long as propodus and 2.71 – 3.00 times as long as wide (terminal spine included), terminating in 1 large claw and 17 – 30 spines on flexor margin (most 17 – 22); carpus 2.81 – 3.78 times as long as wide, 0.60 – 0.64 times as long as propodus, 0.66 – 0.78 times as long as merus; merus 3.63 – 4.29 times as long as wide, 1.27 – 1.51 times length of carpus. Endopod of male first pleopod (Fig. 6 V) elongated, 2 times as long as proximal width, 0.43 times as long as exopod, with a strong appendix interna, variable in shape. Appendix masculina on male second pleopod (Fig. 6 W, 7 A) slender, 0.86 times long as endopod, spines extending to midlength of appendix masculina. Appendix interna reaching half of appendix masculina and well into the spinulated part of the appendix masculina. Egg size of overigerous females 0.26 – 0.29 x 0.48 – 0.50 mm.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	etymology	Etymology. Micratya cooki is dedicated to Ben Cook, the collector of the new species.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	distribution	Distribution. Micratya cooki is known from some streams in Puerto Rico. The small egg size, suggesting prolonged larval development similar to M. poeyi, and lack of phylogeographic structure across the large island of Puerto Rico (Cook et al. 2009), both indicate that it probably has a wider distributional range in the Caribbean.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
03E48782B2667109FF540E7C3277FEA4.taxon	discussion	Remarks. Micratya cooki is very similar to Micratya poeyi (F. E. Guèrin-Méneville, 1855). It can be distinguished from M. poeyi in the armature of the dactyli on the fifth pereiopod (with 17 – 30 spinules on flexor margin vs. 24 – 43 in M. poeyi), the armature of the uropodal diaeresis (16 – 18 movable spinules vs. 20 – 23 in M. poeyi) and a different armature of the distal margin of the telson (10 – 12 distal spines vs. 14 – 16 distal spines in M. poeyi). The armature of the rostrum is more variable in M. cooki which lacks teeth on carapace posterior to orbital margin (M. poeyi with 0 – 2) and armed dorsally with 3 – 9 teeth (M. poeyi with 7 – 9), ventral teeth with 0 – 4 vs. 1 – 4 in M. poeyi. Male specimens can distinghuished by the spinulation of the appendix masculina (Fig. 7). In M. poeyi the spines are located near distal end of appendix masculina, the tip of appendix interna does not reach to the spinulated part of the appendix masculina. In M. cooki the spines extend more proximally, the tip of appendix interna reaches into the spinulated part of the appendix masculina. In living specimens, M. poeyi has 3 distinct white vertical color bands on a dark body (see Karge & Klotz 2008, p 120), while the living color patterns of M. cooki are not yet clear but may resemble one of the two other color patterns recognized by Chace & Hobbs (1969). Although both species are very similar in morphological characteristics, they can be clearly distinguished by molecular data.	en	Karge, Andreas, Page, Timothy J., Klotz, Werner (2013): A new species of freshwater shrimp of the genus Micratya (Decapoda: Atyidae: Caridea) from Puerto Rico. Zootaxa 3608 (5): 357-368, DOI: 10.11646/zootaxa.3608.5.4
