THE UNIVERSITY OF KANSAS SCIENCE BULLETIN Vol. XXVJ June 1, 1938 [No. 13 Miscellaneous Notes on Mexican Snakes EDWARD H. TAYLOR and HOBART M. SMITH, Departiiient of Zoology, University of Kansas Abstract : The following spocie.? of Mexican snakes are discussed : Loxoce-mus bicolor Cope; Diadophis regalis dougesii (Villada) ; Conopsis jrontalis (Cope); Xenodon angustirostris Peters; Geophis semidoUatus Dumeril and Bibron; Geophis blanchardi sp. nov. (related to dubiics and chnlybaeus) ; Enu-lius unicolor (Fischer); Enidius s-iimichra-sii Bocourt ; Storcria dekayi (Hol-brook) ; Storcria storerioidcs (Cope); Ninia diademata Baird and Girard; Chersodromus liebmanni Reinhardt; Conophis concolor Cope; Conophis vit-tatus Peters; Tantilla rubra Cope; Tantillo bocourti (Giinther) ; Tantilla cal-amarina Cope; Stenorhina dcgcnhardti apiata Cope; Stcnorhina degenhardti quinquelineata (Hallowell), Clelia clelia (Daudin). THE following notes are based on specimens collected, for the most part, by tlie authoi's, in Mexico. Lo.vocemus bicolor Cope Loxocemus bicolor Cope, Proc. Acad. Nat. Sci. Philadelphia, 1861, p. 70 (type description; type locality. La Union, Salvador). A single specimen of this species (EHT-HMS No. 4574, 2 mi. north Xaltianguis, Guerrero, Mexico) was collected on the highway at night during a downpour of rain ; lights from my car disclosed it crawling across the road. Rostral large, upturned, part visible above three fourths of the distance from frontal; internasals about half area of prefrontals, narrowed medially; prefrontals bordered by three labials; no loreal, frontal longer than its distance from end of the snout ; parietals small, separated posteriorly by an occipital shield; one large preocular broadly in contact with the frontal; a supraocular, small, displaced backwards by the upper extension of the preocular; three post-oculars; temporals 3+6 + 6+7; upper labials 11,11, the seventh and (239)
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