70 
Zoological Miscellany, 
6. Clotho P inorndta. Vipera inornata, A. Smith. Echidna inornata, 
A. Smith, Illust. Zool. S. Africa, Kept. t. 4. 
Inhabits South Africa. 
6. Clotho P atropoides. Vipera atropoides, A. Smith. Echidna atropoi- 
des, A. Smith. 
Inhabits South Africa. 
b. Nostrils small, anterior suhlateral. Cerastina. 
III. Cerastes. Subcaudal plates 2-rowed : nostrils lunate, in the hind- 
er part of a small nasal plate : eyes of males horned. 
* With a horn-like scale over the eyes. 
1. Cerastes Hasselquistii. Vipera Cerastes, Hasselquist. — Geoff. Kept. 
^5 fig* 3, not good. Schlegel, 585, t. 21, fig. 12, 13. 
$ not horned, Aspis Cleopatra, Laur. 
Inhabits Egypt. Brit. Mus. 
2. Cerastes Richiei. Uniform pale brown : scales of head largest : 
cheek with only 3 rows of scales between the eyes and the labial shields ; 
first lower labial shield long, the second and third scarcely higher than 
long, the rest rather longer than high. 
Inhabits Tripoli, J. Richie, Esq. Brit. Mus. 
More rugose than C. Hasselquistii. 
3. Cerastes caudalis, A. Smith, Illust. Zool. S. Africa, Rept. t. 7. Vipe- 
ra ocellata, A. Smith, Mag. Nat. Hist. (1838), ii. 92. The scales under the 
tail broad, rhombic, somewhat like the dorsal ones. 
Inhabits South Africa, Dr. Andrew Smith. 
** With a group of small horn-like scales over the eyes. 
4. Cerastes cornuta. Vipera cornuta, Daud. v. 188 ; Schlegel, 582, t. 21, 
fig. 8, 9. V. Lophophrys, Cuv. Paterson, Voy. t. 15. V. armata. Smith. 
Inhabits Cape of Good Hope. Brit. Mus. 
IV. Echis. Subcaudal plates 1 -rowed: nostrils minute, in suture of 
2 small scales : the anterior frontal shields minute, smooth : pupil round. 
1. Echis arenicola, Boie. Vipera pyramidarum, Geoff. Rept. Egypt, t. 
7, fig. 1 ; Savigny, R. E. t. 4, fig. 1 — 4. Vipera Mgyptiaca, Ruppell. 
Echis pavo and Echis varia, Reuss. 
Inhabits Egypt. Brit. Mus. 
2. Echis carinata, Merrem. Boa Horatta, Shaw, from Russel, ii. t. 2. 
Scytale hizonatus, Daud. 
Inhabits India. Brit. Mus. 
Echis Krait, Merrem, from Boa Krait, Williams, Asiatic Researches, 
ii. 328. Perhaps the same as the last. 
II. Head more or less shielded. Nostrils anterior. Subcaudal plates 2- 
rowed. 
a. Head fiat-topped, high on the sides, shielded in front. Nostrils in the 
middle of a shield. Tail end simple : subcaudal plates 2-rotved. Viperina. 
