OPHIDIA— COLUBRIDAE— B. TAENIATUM LATERALS. 



543 



BASCANIUM TAENIATUM, Hallow., subspecies LATERALS, Hallow. 



Leptopkis teeniata, Hallow., Proc. Acad. Nat. Sci. Pliila., vi, 1852, 181. — Id., Sit- 



greave's Exp. Zufii & Col. Riv., 1853, 133-140. 

 Masticophis tccniatns, Baikd & Girard, Cat. N. A. Eep., pt, i, Serp., 1853, 103. — Be, 



P. R. R. Rep., x, 185!), 20, pi. ii.— Id., P. R. R. Rep., 1S50, x,— Coop. & 



Suckl., Nat. Hist. Wash. Terr., 18G0, 302.— Cope, Proc. Acad. Nat. Sci. 



Phila., 1800, 305. 

 iJrymobius twniatus, Cope, Proc. Acad. Nat. Sci. Pliila., 1800, 501. 

 Masticophis schottii, Baikd & Girard, Cat. N. A. Rept. pt. i, Serp., 1853, 100. — Bd., U. 



S. & Mex. Bound. Surr., ii, 1859, 20. — {Leptopkis lateralis. Hallow., Proc. 



Acad. Nat. Sci. Pliila,, 1853, 237, and Masticophis ornata, Baikd & Girard, 



Cat, N. A. Serp., sbould probably be added to this list as a synonym.) 

 Bascanium tccniatum, Hallow., subspecies laterale, Hallow., Cope, Check-List N. 



A. Batrach. & Rept., 1875, 40. 

 Hab. — Pacific and Souoran Regions, Utah, and Nevada. 



As numerous as the preceding species, and exhibiting the same pecu- 

 liarities. 



It should be mentioned the last two species were, until very recently, 

 known as 3fasticophis ; but Professor Cope, after a careful study of their 

 generic characters has regarded this name as a mere synonym of Bas- 

 canium. 



No. 



Locality. 



Date. 



Collector. 



234 



205 



XXX 



P P P2 



52 A 



737 

 H H 





Aug. 1, 1S72 

 Sept., 1S72 

 Sept., 1S73 

 Oct., 1S73 

 July, 1874 

 Sept., 1S74 

 Oct., 1S74 



Dr. H. C. Yarrow. 

 H. W. Henshaw. 



Do. 



Do. 



Do. 

 Jas. M. Rutter. 

 H. W. Henshaw. 



Rush Lake, Utah 







Nutria, N. Mex 



Camp Grant, Ariz 



Southern Arizona 



The following genus is a new one erected by Professor Cope to receive 

 a species of serpent found in Arizona. But a single specimen was secured. 



Genus CHILOPOMA, Cope. 

 Teeth subequal ; the last one or two on the maxillary bone a little 

 stouter than the others, and separated from them by an interspace ; not 

 grooved. Cephalic scuta normal above ; one nasal shield and one loreal, 

 which enters the orbital border. Rostral obtuse, with prominent lateral and 

 posterior borders. Scales keeled ; anal scutum entire ; subcaudal scutella 

 divided. General form that of Euticnia. 



