SNAKES. 113 
c. Head shielded, small; muzzle rather depressed : nostrils between 
two shields: eyes surrounded by small plates : tail very short : 
anal spurs small, hidden. Charinina. 
24. CHARINA. 
Head short; crown flat ; sides shelving ; muzzle blunt, rounded : 
frontals 4, transverse, band-like, hinder rather larger ; vertebral very 
large ; occipital very small, oblique ; two loreal, three anterior larger 
and three posterior smaller oculars ; superciliary 3-3, small; rostral 
large, convex: nostrils lateral, very small, between two nasal scales, 
the upper band-like, transverse, like a frontal, margining the rostral : 
eyes moderate, surrounded by small scales: throat with small scales ; 
shield small, with a distinct longitudinal gular fold: two front up- 
per labial shields large ; rest smaller, lower: front lower labial high, 
slender; hinder lower: body elongate, cylindrical: scales smooth, 
rhombic, imbricate, lower series largest: ventral shields narrow, 
transverse: tail short, blunt at the end: subcaudal plates narrow, 
six-sided, simple. 
Tortrix sp., Blainville l. c. Not noticed by Dumeril § Bibron. 
1. The Cuartna. Charina Botte. Tortrix Botte, Blainv. 
N. Ann. Mus. 1835, t. 26, f. 1. 
Body elongate, cylindrical, blunt at each end, pale yellow; 
back and tail darker; one series of scales between eyes and labial 
shields. 
a. In spirits. California. From Mr. Douglas’s collection. Pre- 
sented by the Zoological Society. 
d. Head shielded, small, cylindrical like the body ; muzzle depressed, 
rounded : nostrils between two plates: no hinder frontal bone : 
intermaxillary teeth distinct : eyes in the middle of a plate : tail 
very short, cylindrical, not prehensile: anal spurs very small, 
hidden. ‘Tortricina. 
Anguiformes pars, Oppell, Rept. 1811. Cylindriques pars, 
Latreille, Fam. Nat. 100. Tlysioidea pars, Fitz. N. Class. Rept. 26. 
Tortricina pars, Muller. Tortricides pars, Dum. §& Bib. Erp. Gen. 
vi. 581. Imbricate pars, Bove, Isis, xx. 510, 1827. Cylindrophes 
pars, Fitz. Syst. Rept. 24, 1843. 
25. Torrtrix. 
Head shields 7, normal; no internasal nor post-ocular: nos- 
trils subvertical, in a single shield with a slit above: eyes subverti- 
L3 
