181. ERYTHROLAMPRUS. 
207 
. o (V. 181; C. 75). Tampico. Mr. H.H. Smith [C.] ; 
a ! : F. oe 2 
g. 2 (V. 123; C. ?). Hacienda del Hobo. P. Geddes, Esq. [P.]. 
h. & (V. 128; C. ?). Tehuantepec. ’ 
z 3 (V. 123; 0.94). Vera Paz. O. Salvin, Esq. be 
k. 2 (V. 185; C. P). Belize. ‘O. Salvin, Esq. [C.]. 
Ln, o. d (V.121; C. Stann Creek, Brit.Hon- Rev. J. Robertson 
6), (V. 130, duras, [C.]. 
130; C. ?, 78), & 
her. (V. 129; C. 78). 
p-r. & (V. 120; 0.93) Brit. Honduras, 
& Q (V. 182, 132; 
CO. 81, 79). 
st. ¢ (V. 123, 123; ——?P (Two of the types of 
C. 89,8 C. fissidens.) 
7. Erythrolamprus fissidens. 
Coronella fissidens, part., Giinth, Cat. p. 36 (1858). 
Coniophanes punctigularis, Cope, Proc, Ac. Philad. 1860, p. 248, and 
Journ. Ac. Philad. (2) viii. 1876, p. 188; F. Miill. Verh. Nat. Ges. 
Basel, vi. 1878, p. 666. 
fissidens, Cope, ll. cc.; Bocourt, Miss. Sc. Mex., Rept. p. 650, 
pl. xli. fig. 3 (1886). 
Dromicus chitalonensis, Ff. Mill. Verh. Nat. Ges. Basel, vi. 1877, 
. 407. 
Tohyinenia fissidens, part., Garm. N. Am. Rept. p. 62 (1883) ; 
Giinth. Biol. C.-Am., Rept. p. 161 (1895). 
Erythrolamprus fissidens, Cope, Bull. U.S, Nat. Mus. no. 32, 1887, p. 77. 
violaceus, Cope, 1. ¢. 
Snout moderate, rather strongly depressed, rounded. Rostral 
once and a half to nearly twice as broad as deep, scarcely visible 
from above; internasals much shorter than the prefrontals ; 
frontal once and a half to once and two thirds as long as broad, as 
long as or longer than its distance from the end of the snout, shorter 
than the parietals; loreal nearly as long as deep; one preocular 
(rarely divided); two postoculars; temporals 14-2; eight upper 
labials, fourth and fifth entering the eye ; four or five lower labials 
in contact with the anterior chin-shields, which are as long as or a 
little longer than the posterior. Scales in 21 rows. Ventrals 
117-140; anal divided ; subcaudals 64-89. Brown above, with or 
without longitudinal series of small dark spots, or an ill-defined 
dark vertebral stripe; a dark lateral streak ; a pair of more or less 
distinct fine yellowish lines on the neck, broken up into small spots 
anteriorly or preceded by a small roundish spot; labials grey or 
brown, speckled with black, with a yellow, above black-edged line 
running along their upper border; this line extends to the side of 
the neck ; throat speckled with blackish ; lower parts white, with 
more or less numerous black dots, which may form a regular series 
on each side of the belly. 
Total length 525 millim.; tail 145. 
Mexico and Central America. 
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