140. sTENoPHIs. 43 
5. Stenophis maculatus. (Prats IV. fig. 2.) 
Dipsadoboa maculata, Giinth. Cat. p. 183 (1858). 
Rostral twice as broad as deep, scarcely visible from above; 
internasals as long as broad, much shorter than the prefrontals ; 
frontal a little longer than broad, as long as its distance from the 
end of the snout, shorter than the parictals; loreal longer than 
deep; one preocular, in contact with the frontal; three post- 
oculars; temporals small, scale-like, 2+2; eight upper labials, 
fourth and fifth entering the eye; four lower labials in contact 
with the anterior chin-shields; posterior chin-shields narrower and 
separated from each other by two series of scales. Scales in 
19 rows. Ventrals 243; anal entire; subcaudals 126, single. 
Yellowish, “ with small quadrangular black spots.” 
Total length 655 millim. ; tail 165. 
Habitat unknown. 
a. o (V. 243; C. 126). —- (Type.) 
6. Stenophis arctifasciatus. 
Heterurus arctifasciatus, Dum. § Bibr. vii. p. 1176 (1854) ; Jan, Icon. 
Gén. 38, pl. iii. fig. 1 (1871). 
Dipsas (Heterurus) arctifasciatus, Boetig. Abh. Senck. Ges. xi. 1877, 
p. 34, 
Rostral broader than deep, just visible from above; internasals 
a little broader than long, nearly as long as the preefrontals; frontal 
once and one third as long as broad, longer than its distance from 
the end of the snout, shorter than the parictals; loreal longer than 
deep ; one preocular, not reaching the frontal; two or three post- 
oculars; temporals 1+1, 1+2, or 242; eight upper labials, 
fourth and fifth entering the eye; six lower labials in contact with 
the anterior chin-shields; posterior chin-shields as long as the 
anterior and in contact with each other. Scales in 21 or 23 rows. 
Ventrals 225-236; anal divided; subcaudals 152-159, single. 
Pale orange or pale brown above, with numerous narrow blackish 
cross-bars; a black transverse spot on the nape; head without 
markings; whitish beneath, tail spotted with blackish. 
Total length 800 millim.; tail 260. 
Madagascar. 
a. Q (Se. 23; V. 236; C. 152). Imerina. Rey. R. Baron [C.}. 
7. Stenophis variabilis. (Prarn IV. fig. 3.) 
Rostral broader than deep, just visible from above ; internasals a 
little broader than long, a little shorter 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; one preocular, which may be divided, not reaching the 
