130 



SYSTEMATIC LIST AND SYNONYMY. 



OPHIDIA-l Wtinued. 



Stenostoma 



Wagler, 1824, Spix Serp. Bras., 68; D. & I'.., L844, Erp., VI, 322; Jan, 



1861, Arch, per la Zool., 1< SI >. For Synopsis, page 5, road: 

 Scales in 15 rows; 



ocular not in contact with the vertebral series; 



infralabials four duke 



ocular in contact with vertebrals humile 



scales in 1 1 rows; 

 two labials, separated by the ocular; 

 oculars not in contact with vertebrals; 



infralabials five rubettum 



oculars and vertebrals in contact; 



infralabials five i< nuiculum 



three labials, two in front of ocular; 

 oculars and vertebrals not in contact myopicurri 



scales in 13 rows. phenopa 



Stenostoma iui.ce 



Rena (Mas B. & <;.. 1853, Serp., 142; Bd., 1859, P. R R. Rep., X. pi. 33, 



f. 100. Stenostoma dula Jan, 1861, A.rch. Zool., 189,— rcon. livr. 2, 



pi. 5,6, f. 5, — 1863, Sist., 15, - 1864, [con. Text, 36; Cope, 1880, 



Bull. 20, C. S. Mn..., p. I'u, — 1875, Checklist, 44. 



Texas. 



Stenostoma humile 



Rena humilis B, A G., 1853, Serp., 1 13. Stenostoma humile Cope, 1861, 



Pr. Phil. A.-., 305 (Name), — 1875, Checklist, 41. 



Body very slender ami cylindrical; tail short, conical, tapering, nut 

 acute, one-fifteenth of tin- total length. Head less depressed (than S. 

 dula . Eyes an J nostril more distinct than in the preceding species 

 (S. duke). The eye-shield in contact with the longitudinal series on 

 top of the head. No supraorbitals. I 'est parietals much smaller than 

 the parietals. Scales in 15 funs. Scales on the abdomen larger than 

 on the back. Uniform chestnut-brown, lighter beneath, 



Valliecetas, Cal. (B. & G.) 

 Stenostoma rubellum sp. n 



Lung, slender, cylindrical ; head indistinct, slightly depressed, muzzle 

 rounded; tail short, thick, ending in a spine which is directed down- 

 ward. Eyes distinctly visible beneath the ocular shields. Rostral 



reaching backward as far as to n vertical fi the anterior edge of 



the ocular. Nasal obliquely divided; lower portion narrow, separated 

 from the ocular by a single labial. Oculars reaching the edge of the 

 lip, broadening upward, separated by three small shields on the top of 

 the head, followed by a large labial. A pair of large broad parietals 

 on eaeli side behind the upper half of the ocular and the small supra- 

 ocular, separated on the vertex by the vertebral series, and the posterior 

 of eaeh pair separated from the labial bj a scale-like shield. Nasals 

 separated by the extremity of the rostral and the anterior scale of the 

 dorsal row. Rostral broad, upper extremity rather acute, [nfralabials 



