192 U.S. NATIONAL MUSEUM BULLETIN 22 



Leptodira pacifica Cope 



Proc. Acad. Nat. Sci. Philadelphia, vol 20 (1868), p. 310, 1869. 

 =Leptodeira punctata (Peters) 

 HoLOTYPE : 6833, Mazatlan, Sinaloa, Mexico, F. Bischoff. 



Leptodira personata Cope 



Proc. Acad. Nat. Sci. Philadelphia, vol. 20 (1868), p. 310, 1869. 

 =Leptodeira maculata (Hallowell) 

 Holotype: 6836, Mazatlan, Sinaloa, Mexico, F. Bischoff. 



Leptognathus argus Cope 



Joum. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 8 (1875), p. 130, pi. 



27, fig. 1, pi. 28, fig. 7, 1876. 

 =Dipsas argus (Cope) 



Holotype : 30656, Sipurio, Costa Rica, W. M. Gabb. 



Leptognathus pictiventris Cope 



Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 8 (1875), p. 130, pi. 



28, fig. 8, 1876. 

 =Dipsas pictiventris (Cope) 



Holotype: 30657, head and tail only, eastern Costa Rica, W. M. Gabb. 



Leptognathus stratissima Cope 



Proc. Amer. Philos. Soc, vol. 23, p. 280, 1886. 

 =Imantodes elegans Jan 

 Holotype: 14121, Panama, G. W. Nelson, May 9, 1885. 



Leptognathus turglda Cope 



Proc. Acad. Nat. Sci. Philadelphia, vol. 20, p. 136, 1868. 

 =Sibynomor phus turgidus (Cope) 



Cotypes (2) : 5815 (2), northern part of the Paraguay River (boundary 

 of Brazil and Paraguay) , T. J. Page. 



Leptophis aeruginosus Cope 



Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 8 (1875), p. 132, pi. 

 28, fig. 9, 1876. 

 Holotype: 30684, Costa Rica, W. M. Gabb. Identification of this speci- 

 men is doubtful because it is in a poor state of preservation. 



Leptophis coeruleodorsus Oliver 



Occ. Pap. Mus. Zool. Univ. Michigan, No. 462, p. 4, 1942. 

 ^^Leptophis ahaetulla coendeodorsa Oliver 



Paratypes (9) : 5587, Trinidad, West Indies, T. N. Gill. 15235, Trinidad, 

 West Indies, H. Caracciola. 17746, Trinidad, West Indies, G. T. Wayman, 



