100 SYNOPSES AND DESCRIPTIONS, 
eight, fifth larger, Submentals two pairs, hinder half as long as the 
anterior. Temporals 3+3. Scales hexagonal on the flanks, elongate on 
the back, in 13 rows. Ventrals 117. Subeaudals 22 pairs, Length 9 
inches; tail 1, inches, Lower California, (Cope.) 
CARPHOPHIS CINCTA. 
CHILoMENIsScus crnctus Cope, 1861, Pr. Ac. N. Se.,° Phil., 303. 
Internasals separated by the rostral. Nasal grooved behind the nostril. 
One small anteocular. Two postoculars. Labials 7, first long, remainder 
high, except the last two, which are nearly equilateral. Scales very broad, 
smooth, in 13 rows. Anal divided. Tail very short. 
Reddish-white. Encircled by sixteen black rings upon the body and 
three upon the tail. Rings and spaces about equal, three to five scales 
each. Parietals and frontal black to the second labials. Chin shaded 
with black. Guaymas, Gulf of California, Possibly the same as the 
preceding. (Cope.) 
CARPHOPHIS HELENAE. 
CELUTA HELENAE Kennicott, 1859, Pr. Ac. N. Sc., Phil., 100. 
CARPHOPHIS AMOENA Var. HELENAE, Jan, 1862, Arch. per la Zool. 
“Snout shorter and narrower than in @. amoena. A single pair of 
frontal plates. Color above lustrous chestnut brown; beneath pale yel- 
lowish (flesh-color in life), color of the abdomen extending to second 
lateral row of dorsal scales. Readily distinguishable by the suppression 
of the anterior frontals,” Mississippi, [linois, 
CARPHOPHIS AMOENA, pl. VII, fig. 1. 
CoLvuBER AMOENA Say, 1825, Jour. Ac. N. Se., Phil., 237. 
CARPHOPHIS AMOENA Gervais, 1843, Dict. d’ Hist. Nat., IIT, 191. 
Small, moderately stout, subcylindrical, belly broad; head not distinct 
from the neck, crown convex, muzzle broad; tail short, near one fifth of 
the total, thick, conical. Eye small, pupil round. Mouth moderate, nearly 
straight. Head-shields nine, broad, excepting the supraciliaries, which are 
very small. Frontal hexagonal. Internasals small. Rostral about as 
broad as high, very convex. Nasal entire, the small nostril in its anterior 
half. No loreal. Orbitals 1—1, anterior elongate. One temporal. Labials 
five, third and fourth under the eye, fifth largest. Infralabials six, fourth 
