CHECKLIST OF THE SNAKES OF MEXICO 51 



DIPSAS ELEGANS (Boulenger) 



Leptognaihus elegans Boulengeb, Catalogue of the snakes in the British Museum, 

 vol. 3, 1896, pp. 452-453, pi. 23, fig. 3. 



Ti/pe.—Brit. Mus. Nat. Hist. 

 Type locality. — Tehuantepec. 

 Range. — ^Known only from the type locality. 



DIPSAS GAIGEAE (Oliver) 



Sitynomorphus gaigeae Oovek, Occ. Pap. Mus. Zool. Univ. Michigan, No. 360» 

 1937, pp. 22-23. 



Type.— Univ. Mich. Mus. Zool. No. 80221. 

 Type locality. — Paso del Rio, Colima. 

 Range. — Known only from the type locality. 



DIPSAS MAXILLARIS (Werner) =» 



Leptognuthtts ma^illaris Werner, Zool. Jahrb., vol. 28, 1909, pp. 279-280. — Amabal, 

 Mem. Inst. Butantan, vol. 4, 1929, p. 29. 



Type. — Brussels Mus. No. 120. 



Type locality. — Tabasco, Mexico, 



Range. — Kjiown only from the type locality. 



DIPSAS SANNIOLUS (Cope) 



Mesopeltis sanniolus Cope, Proc. Acad. Nat. Sci. Philadelphia, vol. 18, 1866 (1867), 



p. 318. 

 Leptognaihus sminiolu^ Mocquard, Mission scientifique au Mexique et dans 



I'Amerique centrale, Kept., livr. 16, 1908, p. 894, pi. 73, fig. 3. 

 Sibon sanniolus Smith, Proc. U. S. Nat. Mus., vol. 93, 1943, p. 470. 



Type.—V. S. N. M. No. 6564. 

 Type locality. — Yucatan. 



Range. — The northern and eastern portions of the Yucatan Penin- 

 sula (known in Mexico from several localities in Yucatan). 



Genus DRYADOPHIS Stuart 



Drijadophis Stuaet, Copeia, No. 1, 1939, p. 55; Misc. Publ. Mus. Zool. Univ. 

 ]\Iichigan, No. 49, 1941, pp. 1-106, pis. 1-4, figs. 1-13, maps 1-4 (generic 

 revision). 



Genotype. — Coluber hoddaerti Sentzen. 



Range. — The coasts of Mexico from Colima and southern Tamauli- 

 pas southward to Argentina. 



Species. — Eighteen species and subspecies, five occurring in Mexico. 



^ Amaral (loc. cit.) believes this species a sj'nonym of D. elegans; we have seen no speci- 

 mens but by description alone conclude that Werner's specimen appears sufficiently different 

 to be recognized. 



