ee ee ne 
44 COLUBRID, 
frontal; two or three postoculars; temporals 2+2 or 3; eight 
upper labials, fourth and fifth entering the eye ; five lower labials 
in contact with the anterior chin-shields; posterior chin-shields 
very small or absent. Scales in 23 or 25 rows. Ventrals 251- 
265; anal entire; subcaudals 159, single. Greenish yellow or 
orange above, with small black spots or rather indistinct dark 
green cross-bars ; a series of larger blackish spots along the spine; 
head bright yellow, spotted or marbled with blackish; a large 
black nuchal spot; yellow beneath, tail (in the male) with black 
spots. 
Total length 1098 millim. ; tail (injured) 260. 
Madagascar, 
a-b. Sg (Sc. 23; V. 251; C.?) Madagascar. 
& yg. (Se. 25; V. 265; C. 159). 
8. Stenophis betsileanus. (Prats IV. fig. 4.) 
Dipsas betsileana, Giinth. Ann. § Mag. N. H. (5) vi. 1880, p. 238. 
Rostral broader than deep, just visible from above; internasals 
broader than long, a little longer than the prefrontals; frontal 
once and one third as long as broad, longer than its distance from 
the end of the snout, shorter than the parietals ; loreal longer than 
deep, entering the eye below the preocular, which is widely 
separated from the frontal; two postoculars; temporals 1+2; 
seven upper labials, third and fourth entering the eye; five lower 
labials in contact with the anterior chin-shields; posterior chin- 
shields shorter than the anterior, in contact with each other. Scales 
in 23 rows. Ventrals 226; anal divided; subcaudals 106 pairs. 
Black, with yellowish-white annuli, widening on the belly; some 
of the annuli interrupted and alternating on the back; upper 
labials and throat yellowish white; a yellowish-white bar across 
the snout. 
Total length 400 millim. ; tail 90. 
Madagascar, 
a, Yg. (V. 226; C. 106), S.E. Betsileo. (Type.) 
14]. LYCODRYAS. 
Lycodryas, Giinth. Ann, § Mag. N. H. (5) iii. 1879, p. 218. 
Maxillary teeth 12 or 13, anterior longest, followed, after a short 
interspace, by an enlarged, grooved fang; anterior palatine and 
mandibular teeth longest. Head very distinct from neck; eye 
rather large, with vertical pupil. Body much elongate, compressed ; 
scales smooth, with apical pits, in 19 rows; ventrals angulate 
laterally. Tail long; anterior subcaudals single, rest divided. 
Hypapophyses developed throughout the vertebral column. 
Comoro Islands, 
