76 BULLETIN 18 7, UNITED STATES NATIONAL MUSEUM 



Range. — Pacific coast of extreme southern Chiapas, south to Panama 

 (only precise Mexican record is from the vicinity of Escuintla, 

 Chiapas). 



IMANTODES GRACILLIMUS (Giinther) 



Dipsas graeillima Gunthee, Biologia Centrali-Americana, Rept., 1895, p. 177, 

 pi. 56, fig. B. 



Eimantodes gracilUnms Boixlengeb, Catalogue of the snakes in the British Mu- 

 seum, vol. 3, 1896, p. 371. 



Type.— Brit. Mus. Nat. Hist. 

 Type locality. — Southern Mexico. 



Range. — Known only from two definite localities: Tres Marias 

 Islands (Boulenger), and Acapulco, Guerrero (M.C.Z. No. 823). 



IMANTODES LATISTRATUS (Cope) 



Dipsas gemmistrata latistrata Cope, U. S. Nat. Mus. Bull. 32, 1887, p. 68. 

 Iniantodes latistratus Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, p. 387, pi. 37, 

 fig. 2. 



Type.— U.S.'N.M. No. 24963, Acad. Nat. Sci. Phila. No. 11677, two 

 cotypes (latter from "Toluca"). 



Type locality. — Restricted to Guadalajara, Jalisco (U.S.N.M.) (in- 

 cluded also "Toluca'-). 



Range. — Probably southern Sinaloa south at least to central Guer- 

 rero (actual records on the mainland are from the states of Guerrero, 

 Jalisco, Mexico, Michoacan, Morelos, and Nayarit). 



IMANTODES SPLENDIDUS SPLENDIDUS (Gunther) 



Dipsas splendida Gunther, Biologia Centrali-Americana, Rept., 1895, p. 176, pi. 



56, fig. A. 

 Imantodes splendidus Schmidt and ANDKEVfS, Publ. Field Mus. Nat. Hist., zool. 



ser., vol. 20, 1936, pp. 17&-177. 

 Imantodes splendidus splendidus Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, p. 388. 



Type.— Brit. Mus. Nat. Hist. 

 Type locality. — Yucatan. 



Range. — The northern portion of the Yucatan Peninsula (recorded 

 in Mexico only from the state of Yucatan). 



IMANTODES SPLENDIDUS LUCIODORSUS Oliver 



Imantodes luciodorsus Oliver, Copeia, 1942, pp. 1-2. 



Imantodes splendidus luciodorsus Smith, Proc. U. S. Nat. Mus., vol. 92, 1942, 

 p. 388 ; vol. 93, 1943, p. 435. 



Type.— Mus. Zool. Univ. Mich. No. 81920. 



Type locality. — Balchacaj, Campeche. 



Range. — Coastal or lowlands regions on Atlantic slopes from cen- 

 tral Veracruz through Campeche and northern Chiapas into Gua- 

 temala, avoiding the northern half of the Yucatan Peninsula (known 



