197. MIopoNn. 249 
1. Micrelaps muelleri. 
F. Miill. Verh. Nat. Ges. Basel, vi. 1878, p. 655. 53 
Micrelaps miilleri, Boettg. Ber. Senck. Ges. 1879-80, p. 187, pl. iii. 
fig. 2; Lortet, Arch. Mus. Lyon, iii. 1883, p. 184, pl. xix. fig. 2. 
Head much depressed; rostral nearly twice as broad as deep, 
just visible from above; internasals a little broader than long, 
shorter than the preefrontals; frontal small, not broader than the 
supraocular, once and two thirds as long as broad, hardly as long 
as its distance from the rostral, half as long as the parietals; supra- 
ocular as long as broad; a small postocular, in contact with the 
first temporal; temporal 1+4+1 or 142; seven upper labials, third 
and fourth entering the eye; three or four lower labials in contact 
with the anterior chin-shields, which are as long as the posterior. 
Scales in 15 rows. Ventrals 251-275; anal divided; subcaudals 
26-32. Black, with whitish annuli, which may be narrower or 
broader than the interspaces between them, mostly interrupted 
beneath. 
Total length 405 millim. ; tail 30. 
Palestine. 
a. @ (V. 251; C. 380). Jerusalem. Senckenberg Mus, [E.]. 
2. Micrelaps vaillanti. 
Elaposchema vaillanti, Mocg. J. ¢. p. 128, pl. xii. fig. 1. 
Calamelaps vaillanti, Boetty. Zool. Anz. 1893, p. 117. 
Head much depressed ; rostral large, twice as broad as deep, the 
portion visible from above about two thirds as long as its distance 
from the frontal ; internasals twice as broad as long, twice as long 
as the prefrontals; frontal small, once and a half as long as broad, 
as long as its distance from the end of the snout, much shorter 
than the parietals; supraocular as long as broad; a very small 
postocular; temporals 1+1; seven upper labials, third in contact 
with the prefrontal, third and fourth or third, fourth, and fifth 
entering the eye; two pairs of chin-shields, subequal in size, the 
anterior in contact with four lower labials. Scales in 15 rows 
(17 on the neck). Ventrals 171-203; anal divided; subcaudals 
23-27. Brown above, the centre of each scale greyish white ; 
ventrals brown in the middle, whitish on the sides. 
Total length 282 millim.; tail 32. 
Somaliland. 
197. MIODON. 
Microsoma (non Macq.), Jan, Rev. § Mag. Zool. (2) x. 1858, p. 519, 
and LElenco sist, Ofid. p. 111 (1863); Peters, Mon. Berl. Ac, 
1863, p. 369. 
Miodon, A. Dum. Arch. Mus. x. 1859, p. 206. 
Urobelus, Reinh. Vidensk. Meddel, 1860, p. 229, 
Maxillary very short, with two or three small teeth followed, 
