MEXICAN HERPETOLOGICAL MISCELLANY—SMITH 387 
IMANTODES GRACILLIMUS (Giinther) 
Dipsas gracillima GUNTHER, Biol. Centr. Amer. Rept. Batr., p. 177, pl. 56, fig. B, 
1895. 
Himantodes gracillimus BouLENGER, Cat. Snakes Brit. Mus., vol. 3, p. 87, 1896. 
Diagnosis——Dorsal cross bands very numerous (74 in single speci- 
men examined), becoming broken and indistinct on posterior part of 
body; ventrals 244 to 253 (3 specimens). 
Range.—The west coast of Mexico, presumably from Nayarit to 
central Guerrero. The only definite records are from Tres Marias 
Islands (Boulenger Joc. cit.) and Acapulco, Guerrero (M.C.Z. No. 8238). 
Specimens examined.—One. 
Remarks.—The apparent existence in the area between Guerrero 
and Nayarit of three relatively closely related species of Jmantodes is 
extraordinary and invites further attention as other specimens become 
available. At present, however, all three species seem very well 
founded. 
IMANTODES LATISTRATUS (Cope) 
PLATE 87, FIGURE 2 
Dipsas gemmistrata latistrata Corr, U. S. Nat. Mus. Bull. 32, p. 68, 1887 (Guada- 
lajara and Valley of Toluca). 
Diagnosis —Vertebral scales not enlarged; dorsal bands 33 to 67, 
nearly or quite as wide laterally as dorsally, middorsally separated 
from each other by narrow light areas of about one scale length, none 
of dark bands broken laterally as in splendidus, but the bands becom- 
ing indistinct and sometimes indistinguishable on posterior part of 
body in adults (in young, the bands remain distinct on all parts of the 
body, but are not broken laterally) ; ventrals 223 to 233 (4 specimens), 
caudals 128 to 134. 
Range.—Nayarit southward to central Guerrero. 
Specimens examined.—Ten. 
Remarks.—This very distinct species appears to overlap the range 
of splendidus oliveri. Records available are from Miramar (U.S.N.M. 
Nos. 51481-51483) and Compostela (Univ. Rochester No. 5379), Vay- 
arit; ¢? Hda. Santa Gertrudis 7°; Guadalajara (U.S.N.M. No. 24963), 
Jalisco; Hda. El Sabino (EHT-HMS No. 5330), Michoacan, Huajint- 
lan (EHT-HMS No. 5205) and 6 miles northeast of Cuernavaca 
(EHT-HMS No. 5517), Morelos; Toluca (A.N.S.P. No. 11677) and 
Motajé,2 Mewico; and Chilpancingo (M.C.Z. Nos. 33651-83652) , 
Guerrero. 
*% Boulenger, Cat. Snakes Brit. Mus., vol. 3, pp. 81-87, 1896. 
1 Herrera, Cat. Rept. Batr. Mus. Nac. Mex., ed. 2, p. 30, 1904. 
