378 BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



Order TESTUDINATA 

 Family TESTUDINIDAE 



Genus PSEUDEMYS Gray 



1856. Pseudemys Gray, Proc. Zool. Soc. London, 1855, p. 195 (type, P. concinna). 



The problem of differentiating the species of Antillean fresh-water 

 turtles has been complicated by the lack of specimens from many 

 crucial localities. The recent study by Barbour and Carr has in- 

 cluded practically all the known Hispaniolan specimens, about three 

 dozen in all. Even with this scanty material, two distinct forms 

 have been recognized. The following key, synonymy, and diagnostic 

 characters have been abstracted from the published work of Barbour 

 and Carr. For detailed descriptions and discussions of the species, 

 the original publication should be consulted. 



KEY TO PSEUDEMYS OF HISPANIOLA 



Plastral pattern composed of from several to numerous small circular 



or crescentic markings; dorsal pattern evident at least in part decorata 



Plastral pattern a single, more or less unified figure, often obsolescent 



between the bridges; dorsal markings not evident stejnegeri vicina 



PSEUDEMYS DECORATA Barbour and Carr 



Figures 118, 119 



1940. Pseudemys decorata Barbour and Carr, Mem. Mus. Comp. Zool., vol. 54, 

 No. 5, p. 409, pi. 2, fig. 1; pi. 7, fig. 3; pi. 9, figs. 3-4, 1940. 



Type.— M.C.Z. No. 36862, from Fond Parisien, Haiti. 



Diagnosis. — Readily distinguished by the plastral pattern, which 

 consists of small, circular or elliptical markings scattered about over 

 the plastron; snout of adult relatively sharp and nearly conical, that 

 of mature male upturned and very long. Supratemporal stripe white 

 in preserved specimens. Markings on carapace, at least on lower 

 marginals, distinct in most specimens. 



Recorded specimens. — M.C.Z. Nos. 36851-36860, from Thomazeau, 

 Haiti; M.C.Z. Nos. 36861-36866, from Fond Parisien, Haiti; U.S.N.M. 

 Nos. 59093-59096, from Thomazeau, Haiti, April 2, 1917, P. 

 Bartsch and J. B. Henderson; U.S.N.M. No. 63096, from Fond 

 Parisien, May 4, 1920, W. L. Abbott; U.S.N.M. No. 81091, from 10 

 miles north of Port-au-Prince, Haiti (originally recorded as being 

 from lie a Vache), 1930, W. M. Perrygo. 



PSEUDEMYS STEJNEGERI VICINA Barbour and Carr 



Platk 12, B 



1835. Emys decussala Dumeril and Bibron, Erp6tologie generate, p. 279. — 

 Dumkkil, Catalogue methodique de la collection des reptiles, Museum 

 Paris, vol. 1, p. 11, 1851 (part). — Reinhardt and Lutken, Vid. Medd. 

 Naturh. Foren., Copenhagen, 1862, p. 290, 1863; author's separate, p. 138. 



1862. Clemmys decussata Strauch, Chelonologische Studien, p. 127 (part); 

 Mem. Acad. Sci. St. Petersbourg, ser. 7, vol. 38, No. 2, p. 78, 1890. 



