47. sIMOCEPHALUS. B45 
rows enlarged and bicarinate ; ventrals with a strong lateral keel. 
Tail moderate ; subcaudals in two rows. Hypapophyses developed 
throughout the vertebral column. 
Tropical and South Africa. 
Synopsis of the Species. 
I. Frontal but slightly shorter than the parietals; ventrals 203- 
241; subcaudals 45-61 ...... 1. capensis, p. 345. 
Il. Frontal much shorter than the parietals. 
A. Two postoculars ; ventrals 240 or more. 
Three labials entering the eye ; sab- 
Caudals G0-70 2.2... .. se ceeens 2. guirali, p. 346. 
Two labials entering the eye; sub- 
caudals 75-124 ...........00008 3. poensis, p. 346. 
B. One postocular ; ventrals 178-214; subcaudals 59-63. 
Eye much larger than the nostril.... 4. nyasse, p. 347. 
Eye scarcely larger than the nostril.. 5. stenophthalmus, p. 347. 
1. Simocephalus capensis. 
Heterolepis capensis, Smith, Ill. Zool. 8. Afr., Rept. _ ly. (1847) ; 
Dum. §& Bibr. vii. p. 426 (1854); Peters, Mon. Berl. Ac. 1876, 
p- 119; Mocquard, Brat. Soc. Philom. (7) i. 1887, p. 22; Bouleng. 
‘Ann. & Mag. N. H. (6) viii. 1891, p. 344. 
—— gueinzii, Peters, Mon. Berl. Ac. 1874, p. 164, pl. —. fig. 2; 
Mocquard, t. e. 
—— savorgnani, Mocquard, 1. c. p. 27, pl. x. fig. 4. 
Rostral broader than deep, just visible from above; internasals 
broader than long, two thirds the length of the prefrontals; frontal 
a little longer than broad, as long as its distance from the rostral or 
the end of the snout, slightly shorter than the parietals ; loreal 
square; a small preocular ; two small postoculars ; temporals 1 +2; 
seven upper labials, third and fourth entering the eye; four lower 
labials in contact with the anterior chin-shields, which are longer 
than the posterior. Scales strongly keeled, with secondary keels 
and tubercles, in 15 rows(17 onthe neck). Ventrals 203-241 ; anal 
entire; subcaudals 45-61. Dark olive-brown above, upper lip, 
middle of vertebral scales, and ends of lower scales yellowish ; 
yellowish beneath. 
Total length 930 millim.; tail 133. 
South-east Africa and Ogowai. 
a. & (Head and anterior ex- Delagoa Bay. 8. African Museum [P.). 
= of body and tail; 
. 45). 
