130 SYSTEMATIC LIST AND SYNONYMY, 
OPHI DI A—Continued, 
STUD uN). EG ee EOE Ee OMGECNORGMORD (Glo colic oo O-8 Od pos 0 6 
Wagler, 1824, Spix Serp. Bras., 68; D, & B., 1844, Erp., VI, 322; Jan, 
1861, Arch. per la Zodl., 186. For Synopsis, page 5, read: 
Seales in 15 rows; 
ocular not in contact with the vertebral series; 
infralabials four dulce 
ocular in contact with vertebrals humile 
scales in 14 rows; 
two labials, separated by the ocular; 
oculars not in contact with vertebrals; 
infralabials five rubellum 
oculars and vertebrals in contact; C 
infralabials five : tenuiculum 
three labials, two in front of ocular; 
oculars and vertebrals not in contact myopicum 
scales in 13 rows phenops 
STENOSTOMA DULGE|. =) 0) rie)ce) o/c) noc enone lite ita mee 
Rena dulcis B. & G., 1853, Serp., 142; Bd., 1859, P. R. R. Rep., X, pl. 33, 
f.100. Stenostoma dulce Jan, 1861, Arch. Zo6l., 189, — Icon. livr. 2, 
pl. 5, 6, f. 5, — 1863, Sist., 15, — 1864, Icon. Text, 36; Cope, 1880, 
Bull. 20, U.S. Mus., p. 20, — 1875, Checklist, 44. 
STENOSTOMAS HUMIEEs (ine) cies -ieten n veel acto a= m 
Rena humilis B. & G., 1853, Serp., 143. Stenostoma humile Cope, 1861, 
Pr. Phil. Ac., 305 (Name), — 1875, Checklist, 44. 
Body very slender and cylindrical; tail short, conical, tapering, not 
acute, one-fifteenth of the total length. Head less depressed (than S, 
dulce), Eyes and nostril more distinct. than in the preceding species 
(S. dulce). The eye-shield in contact with the longitudinal series on 
top of the head. No supraorbitals. Post parietals much smaller than 
the parietals. Scales in 15 rows. Scales on the abdomen larger than 
on the back. Uniform chestnut-brown, lighter beneath. 
Valliecetas, Cal. (B. & G.) 
STENOSTOMA RUBELLUM Sp.M..- - - +2 + 5s 25 5 es 3s ees 
Long, slender, cylindrical; head indistinet, 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 a vertical from 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 each 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 each -pair separated from the labial by 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, Infralabials 
