ses. 
7. DROMICODRYAS. 189 
10. Polyodontophis annulatus. 
thus annulatus, Dum. § Bibr. vii. 1, Ixxx. fig. 1 
ay ; Jan, Arch, Zool, Anat. P, of a 78, a 
Gén. 16, pl. iv. fig. 3 (1866); Giinth, Ann, N. H. (4) i. 
dum, 2 F. Miill. Verh. nat. Ges. ply 4 1878, p. 659; 
Bull. Soc. Zool. France, 1880, p. 181. 
thus annulatus, C e, Journ. Ac. Philad. (2) viii. 1876, 
3 Bocourt, Miss. Sc. PO 1888 i ab ne 6 (1886). 
pibie is annulatus, Garm. N. we 
Polyodontophis annulatus, Bouleng. Faun. ye fs 2 "302 (1890). 
Snout much flattened, truncated ; rostral broader than deep, well 
visible from above ; internasals much shorter than the prefrontals ; 
frontal longer than its distance from the end of the snout, a little 
shorter than the parietals ; loreal as long as deep or deeper than 
long; one preocular; two postoculars, both in contact with the 
parietal; temporals 14+2 (or 2+3); nine (excepiionally eight) 
upper labials, fourth, fifth, and sixth (or fourth and fifth) entering 
the eye ; four lower labials in contact with the anterior chin-shields, 
which are a little longer than the posterior. Scales in 17 rows. 
Ventrals 137-157; anal divided ; subcaudals 116-136. Anterior 
half of body red, with pairs of black bars enclosing a yellow or 
layender-grey zone; hinder half of body and tail grey or grey- 
brown, with three longitudinal series of small black spots, which may 
form stripes posteriorly; snout brown, back of the head black; a 
yellow bar across the interorbital region; belly white, grey, dotted 
with black, on the sides. 
Total length 610 millim. 
Mexico and Guatemalla. 
a. 3 (V. 137; C.?). City of Mexico. Mr. Doorman [C} 
b. 3 (V. 157; C.?). Vera Paz, low forest. 0. Salvin, . (0). 
7. DROMICODRYAS. 
Psammo dpi gre Phys. se ii. p. 201 (1837). 
Her as, part., Dum. § Bibr. Erp. Gén. vii. p. 203 (1854) ; 
Jan, Elenco sist, p- 80 (1863). 
Maxillary teeth 28 to 30, equal; anterior mandibular teeth 
strongly enlarged. Head elongate, distinct from neck ; eye large, 
with round pupil. Body cylindrical ; scales smooth, without pits, in 
19 rows ; ventrals feebly angulate laterally. Tail long; subcaudals 
in two rows. Hypapophyses developed throughout the vertebral 
column. 
Madagascar. 
1. Dromicodryas bernieri. 
— his moliniger, var., Schleg. Phys. ets ii. p. 211 (1837). 
08 bernerit, Dum. § Bibr. vii. p. 211, ag (1854); 
Satin Gta. 8, i fg 1 (1860) 
a var. lineata part., Boettg. ASh, Senck, Ges. xii. 
