63. HBERPETODRYAS. vie 
A. Uniform pale brown above. 
a-c,d-f. 3 (V. 143, 143, Porto Real, Prov. Rio M. F. Hardy du 
142; C.118, 122,125), Janeiro. Dréneuf [C.]. 
her. (V. 145, 145; C. 
118, ?), & yg. (V. 144, 
C. 120). 
gy. 3 WW Ls, C. 128). S. José dos Campos, Prov. Mr. A. Thomson 
S. Paulo. (iP. 
h-i. 6 (V. 146; C.?) & Asuncion, Paraguay. Dr. J. Bohls 
© (V. 150; C. 119). [C.]. 
B. Olive above, tail with two black stripes. 
k-l. 8 (V.155; C. 116) Venezuela. Mr. Dyson [C.]. 
& Q (V.151; C. 119). 
2. Merpetodryas carinatus. 
Coluber carinatus, Linn. Mus. Ad. Frid. p. 31 (1754), and S. N. i. 
p. 384 (1766); Daud. Rept. vii. p. 115 (1803). 
—— bicarinatus, Wied, Reis. Bras. i. p. 181 (1820), and Beitr, i. 
p. 284 (1825), and Abbild. (1831). 
Natrix bicarinata, Wagl. in Spix, Serp. Bras. p. 28, pl. vii. (1824). 
Coluber pyrrhopogon, Wied, Beitr. i. p. 291, and Abbild. 
levicollis, Wied, Beitr. i. p. 296. 
Chironius carinatus, Fitz. N. Class. Rept. p. 60 (1826). 
Erpetodryas carinatus, Bove, Isis, 1827, p. 548. 
- Herpetodryas carinatus, part., Schley. Phys. Serp. ii. p. 175, pl. vil. 
figs. 3 & 4 (18387); Dum. § Bibr. vii. p. 207 (1854); Giinth. Cat. 
p- 115 (1858); Cope, Proc. Ac. Philad. 1860, p. 562; Jan, Icon. 
Gén, 31, pl. ii. figs. 2-4 (1869); Garm. Proce, Am. Philos. Soe. 
xxiv. 1887, p. 284; Giinth. Biol. C.-Am., Rept. p. 128 (1894). 
fuscus, -part., Dum. § Bibr. t. ec. p. 209; Giinth. lc. p. 114. 
—— carinatus, Wucherer, Proc. Zool. Soc. 1861, p. 324. 
— carinatus, vars. flavolineata and macrophthalma, Jan, Elenco, 
p- 80 (1863). 
Dendrophis, sp., F'. Miiller, Verh. nat. Ges. Basel, vi. 1878, p. 678. 
Herpetodryas flavolineatus, Boettg. Zeitschr. f. ges. Naturw. lviii. 
1885, p. 234. 
A carinatus, var. vincenti, Bowleng. Proc, Zool. Soc. 1891, 
p. 355. 
Eye very large. Rostral broader than deep, visible from above ; 
internasals as long as or slightly shorter than the prefrontals ; 
frontal once and one fourth to once and two thirds as long as broad, 
as long as or a little shorter than its distance from the end of the, 
snout or the parietals ; loreal longer than deep ; one pre- and two 
(rarely three) postoculars ; temporals 1+1 or 1+2; eight or nine 
upper labials, fourth and fifth, fifth and sixth, or fourth, fifth, and 
sixth, entering the eye; five or six lower labials in contact with 
the anterior chin-shields, which are as long as or shorter than the 
posterior. Scales in 12 rows, all smooth, or the two middle rows 
faintly keeled (females), or the two middle rows more or less strongly 
keeled (males). Ventrals feebly angulate laterally, 145-178 ; 
anal divided (very rarely entire); subcaudals 110-171. 
