32 COLUBRID. 
f. Nasal in contact with the rostral. 
200. Macrelaps, p. 255. 
6. Maxillary short, with 6 to 10 solid teeth. 
Posterior maxillary teeth large and strongly grooved. 
201. Aparallactus, p. 255. 
Posterior maxillary teeth feebly enlarged and feebly grooved. 
202. Elapops, p. 262. 
134. GEODIPSAS. 
Maxillary teeth 14 or 15, equal, followed, after an interspace, by 
a pair of enlarged grooved fangs; mandibular teeth subequal. 
Head distinct from neck ; eye moderate, with round pupil. Body 
cylindrical; scales smooth, without pits, in 19 rows; ventrals 
rounded. ‘Tail moderate ; subcaudals in two rows. Hypapophyses 
developed throughout the vertebral column. 
Madagascar. 
1. Geodipsas infralineata. (Pxare III. fig. 1.) 
Tachymenis infralineatus, Giinth. Ann. § Mag. N. N. (5) ix. 1882, 
p. 265. 
Rostral broader than deep, just visible from above; internasals 
broader than long, a little shorter than the prefrontals; frontal 
once and a half to once and two thirds as long as broad, longer than 
its distance from the end of the snout, shorter than the parietals ; 
loreal trapezoidal, as long as deep; one pre- and’ two post- 
oculars; temporals 14+2; seven upper labials, third and fourth 
entering the eye; four lower labials in contact with the anterior 
chin-shields, which are shorter than the posterior. Scales in 19 
rows. Ventrals 172-187; anal entire; subcaudals 55-62. Brown 
above, uniform or with small blackish spots; a black streak along 
the upper surface of the tail and the posterior part of the back; a 
dark streak on each side of the head, behind the eye, and another 
in the middle, from tlie frontal to the occiput ; lower parts yellow, 
with some brown dots and a continuous or interrupted brown 
streak along the middle of the belly and tail.. 
Total length 760 millim. ; tail 150, 
Madagascar. 
a. 9 (V. 187; C. 62). E. Betsilio. Rev. W. D. Cowan 
(0. (Type.) 
b. 2 (V. 172; C. 55). E. Imerina. Rey. R. Baron [C.]}. 
2. Geodipsas boulengeri. 
Tachymenis boulengeri, Peracca, Boll. Mus. Torin. vii. 1892, no, 112, 
p- 4. 
Rostral broader than deep, scarcely visible from above ; inter- 
‘ 
2. * eS ee 
