58. PHRYNONAX. ON 
Total length 1360 millim. 
Mexico. 
a. 9 (V. 213; C.?). Atoyac, Vera Cruz. Mr. H. H. Smith [C.]; 
F. D. Godman, Esq. [P.]}. 
4. Phrynonax lunulatus. 
Spilotes pcecilonotus, part., Giinth. Cat. p. 100 (1858), and Biol. 
C.-Am., Rept. p. 117 (1894). 
Tropidodipsas lunulata, Cope, Proc. Ac. Philad. 1860, p. 517, and 
1862, p. 348. ee oy 
Spilotes lunulatus, Cope, Bull. U.S. Nat. Mus. no. 32, p. 71 (1887). 
lunulatus, part., Bocourt, Miss. Sc. Mex., Rept. p. 694, 
pl. xlii. fig. 1 (1888). 
Rostral a little broader than deep, just visible from above ; inter- 
nasals shorter than the przfrontals ; frontal once and one third as 
long as broad, as long as its distance from the rostral, slightly 
shorter than the parietals ; loreal a little longer than deep; one 
preocular, widely separated from the frontal; two postoculars ; 
temporals 2+3,; nine upper labials, fourth, fifth, and sixth entering 
the eye; six or seven lower labials in contact with the anterior 
chin-shields, which are a little longer than the posterior. Scales in 
21 or 23 rows, dorsals feebly keeled. Ventrals very obtusely angu- 
late, 202-204; anal entire; subcaudals 126-136. Olive-brown 
above ; young with crescent-shaped brown, black-edged cross bands 
on the back, of which mere traces are left in the adult; belly dotted 
with brown. 
Total length 1380 millim. ; tail 380. 
Central America. 
a. d (V. 202; C. 126). . Mexico. Hr. Hugo Finck [C.]. 
(One of the types of S. peecilonotus.) 
5. Phrynonax fasciatus. 
Spilotes fasciatus, Peters, Mon. Berl. Ac. 1869, p. 443. 
fasciatus, part., Giinth. Ann. § Mag. N. H. (4) ix. 1872, 
p. 20. 
Ahetulla polylepis, Peters, Mon. Berl. Ac. 1867, p. 709. 
Spilotes lunulatus, part., Bocourt, Miss. Sc. Mex., Rept. p. 694 (1888). 
Rostral broader than deep, just-visible from above; internasals 
as long as or a little shorter than the prefrontals ; frontal a little 
longer than broad, as long as its distance from the end of the snout, 
nearly as long as the parietals ; loreal as long as deep or a little 
longer; one preocular, in contact with or very narrowly separated 
from the frontal; two postoculars; temporals 2+2; eight (or 
nine) upper labials, fourth, fifth, and sixth (or fifth, sixth, and 
seventh) entering the eye, last very long; seven or eight lower 
labials in contact with the anterior chin-shields, which are shorter 
than the posterior. Scales in 23 rows, dorsals faintly keeled. 
Ventrals very obtusely angulate, 191” 207; anal entire ; subcaudals 
120-132. Young pale brown above, with crescentic brown, black- 
edged cross bands; head pale brown, speckled with darker ; belly 
