74 BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



HYPSIGLENA OCHRORHYNCHA JANII (Dnges) 



lAophis janii Duofes, Mem. Sect. Sci. Acad. Sci. Lett. Montpellier, voL 6, 1865, 



pp. 32-33. 

 Hypsiglena ochrorhychus janii Smith, Proc. U. S. Nat. Mus., vol. 93, 1943, p. 433. 



Type. — Location unknown. 



Type locality. — Guanajuato. 



Range. — The central portion of the Mexican Plateau, from San Luis 

 Potosi through Guanajuato to Michoacan (recorded from Tupataro, 

 Michoacdn, Guanajuato, and Rio Verde, San Luis Potosi). 



HYPSIGLENA SLEVINI Tanner 



Hypsiglena slevini Tannee (W. W.), Great Basin Nat., vol. 4, 1943, pp. 53^-54. 



Type.—Ca.\ii. Acad. Sci. No. 53631. 



Type locality. — Puerto Escondido, Baja California. 



Range. — Known only from the type locality (near Loreto). 



HYPSIGLENA TORQUATA (Gunther) 



Leptodeira torquata GDnther, Ann. Mag. Nat. Hist., ser. 3, vol. 5, 1860, pp. 



170-171, pi. 10, fig. A. 

 Leptodeira torquata torquata Dunn, Proc. Nat Acad. Sci., voL 22, 1936, pp. 



694-695. 

 Hypsiglena torquata torquata Tayt.or, Univ. Kansas Sci. Bull., vol. 25, 1938 



(1939), pp. 371-373 (part), pi. 37, fig. 3. 

 Pseiidodipsas fallax Peteks, Monatsb. Akad. Wiss. Berlin, 1860, p. 521 (type 



locality indefinite, America or Guayaquil; type in Hamburg Mus.). 

 Comastes quincundatus Jan, Iconographie g4nerale des ophidiens, livr. 38, 



1871, pi. 1, fig. 1 (type locality, Caracas, Venezuela ; type in Heidelberg Mus.). 



Type.— Brit Mus. Nat. Hist. No. 61-12-30, 97. 



Type locality. — Laguna Island, Nicaragua. 



Range. — Pacific coast of Mexico and Central America southward 

 from Nayarit, perhaps to Ecuador and Venezuela in South America 

 (recorded in Mexico only from the states of Colima, Durango, 

 Michoacan, Morelos, Nayarit, and Sinaloa). 



Genus IMANTODES Dumeril and Bibron 



Imantodes Dum^bil and Bibkon, Mem. Acad. Inst. France, vol. 23, 1853, p. 507.— 

 Smith, Proc, U. S. Nat. Mus., vol. 92, 1942, pp. 384-391 (brief review of Mexi- 

 can species). 



Himantodes Cope, Proc. Acad. Nat. Sci. Philadelphia, 1860, p. 264 (emendation). 



Genotype. — Goluher cenchoa Linnaeus. 



Range. — Both coasts of Mexico from central Veracruz and Nayarit 

 southward into South America. 



Species. — Seven species, two with three subspecies each, are known. 

 Eight forms occur in Mexico. 



