50 PROCEEDINGS OF THE ACADEMY OF [Jan., 



Coluber emoryi B. and G. 



Scotophis Emoryi B. and G., I. c, 157 ; O. emoryi Cope, I. c, 636, and 

 Rep. Nat. Mus., 852 ; C. giittatus (part) Boul., I. c, II, 39. 



Frontal rather long, but little shorter than the snout; temporals 

 2 (3)-3 (4); upper labials 8, fourth and fifth in eye; lower labials 

 11, five touching the anterior chin shields; scales in 27 rows (occ. 

 29), all smooth or sometimes a few faintly keeled; ventrals 210- 

 235 ; subcaudals 72-78. 



';" Ground color rather pale gray, with a dorsal row of olivaceous 

 brown blotches with black borders, three or four scales long and 

 ten or twelve wide, separated by interspaces 1^ to 2 scales long; a 

 second series of smaller alternating spots from the third to the 

 seventh rows, subcircular in shape; a third indistinct series oq 

 the second and third rows, and a fourth indicated on the outer 

 roAV and the ends of the ventrals; belly yellowish or Avhite with 

 irregular ashy blotches posteriorly ; top of head much banded, and 

 a dark oblique post-ocular stripe. The number of dorsal spots 

 varies greatly, those now living in the collection of the Zoological 

 Society ranging from thirty-one to fifty in number on the body, 

 and from seventeen to twenty-one on the tail. Length 1330 mm. 

 (tail 190). 



Hab. — Kansas to Texas; south to Chihuahua. 



Coluber vulpinus B. and G. 



Scotophis vulpinus B. and G., I. c, 75 ; C. vulpinus Cope, I. c, 633, 

 and Kep. Nat. Mus., 831 ; Boul., I. c, II, 49. 



Frontal shorter than snout, with anterior border about equal to 

 its length, and with obtuse lateral angles ; temporals 2-3 ; upjJer 

 labials 8, fourth and fifth in eye; lower labials 11, five touching 

 anterior chin shields; 25-27 rows of scales, nine to eleven feebly 

 keeled; ventrals 196-208; subcaudals 51-69; form stout. 



Ground color light brown; dorsal spots dark brown and quadrate 

 in shape, about four scales long and from eleven to thirteen wide ; 

 interspaces about two scales long. There are from 29-42 dorsal 

 spots on the body, and 8-14 on the tail; there is a subcircular 

 alternating series on the third to the seventh rows, and another of 

 square blotches on the outer row and the ends of tne ventrals; rest 

 of the belly yellow, with dark blotches in the middle, usually 

 involving two ventrals; anteriorly the belly is unmarked; no head 

 bands in the aduL, except the oblique post-ocular stripe; edges of 

 labials slightly margined; eye small. 



