161. conoPais. ’ 133 
Conophis lineatus, Cope, Proc. Ac. Philad. 1868, p. 308, and Journ, 
Ac. Philad. (2) viii. 1876, p. 187 ; Bocourt, Miss. Sc. Mex., Rept. 
p. 643, pl. xxxviii. fig. 5; Giinth. Biol. C-Am., Rept. p. 165 
1895). 
Ee ortalion Cope, Proc. Ac. Philad. 1868, p. 8308; Bocourt, Miss. ~ 
Sc. Mex., Rept. p. 646, pl. xxxviii. fig. 6. 
Tomodon pulcher, Bocourt, Journ. de Zool. v. 1876, p. 408. 
Tachymenis lineata, Garm. N. Am. Rept. p. 60 (1883). 
Snout projecting. Upper portion of rostral measuring one third to 
one half its distance from the frontal; internasals as long as broad, 
a little shorter than the preefrontals ; frontal nearly twice as long as 
broad, a little longer than its distance from the end of the snout, as 
long as the parietals; loreal square or longer than deep; one 
preocular (sometimes divided), not reaching the frontal; two post- 
oculars; temporals 242 or 3; eight (rarely seven) upper labials, 
‘fourth and fifth (or third and fourth) entering the eye; four or 
five lower labials in contact with the anterior chin-shields, which 
are as long as the posterior. Scales in 19 rows. Ventrals 158-183 ; 
anal divided; subcaudals 66-78. Yellowish, greyish, or pale olive 
above, usually with six to ten black longitudinal lines, uniting 
to form three stripes on the head, the outer of which pass through 
the eyes; a black line or series of spots running along the outer row 
of scales; chin greyish or olive, spotted. with white; rostral and 
labials greyish or blackish beneath ; lower parts white. 
Total length 780 millim.; tail 150. 
Mexico and Central America. 
A. Striped. (C. lineatus, D. & B.) 
a, 9 (V.171; C.68). Mexico. 
b-c, d. 3 (V.170; C. Duefias, Guatemala. O. Salvin, Esq. [C.]. 
: 78) & 9 (V. 171, 
: 7 ABS! C.P,.P). 
e. 2 (V. 168; C. 77). Cartago, Costa Rica. 
B. Uniform brownish above, with a dark brown stripe on each 
side of the head. (C. concolor, Cope.) 
a. 9 (V. 158; C. 66). Yucatan. 
2. Conophis vittatus. 
Conophis vittatus, Peters, Mon. Berl. Ac. 1860, p. 519, pl. —. fig. 3 ; 
Bocourt, Miss. Sc. Mex., Rept. p. 644, pl. xxxviii. fig. 7 (1886) ; 
Giinth. Biol. C.-Am., Rept. p. 165 (1895). 
sumichrasti, Cope, Journ. Ac. Philad. (2) viii. 1876, p. 187. 
? Conophis viduus, Cope, J. ¢. 
Tomodon vittatus, Bocourt, Journ. de Zool. v. 1876, p. 407. 
Very closely allied to the preceding, but snout more prominent 
and shorter, upper portion of rostral measuring at least half its 
distance from the frontal, and internasals broader than long. Seven 
upper labials, third and fourth entering the eye. Ventrals 147- 
163; subcaudals 57-70. Cream-colour, with three dark: brown or 
