38. lETRALEFIS. 



319 



ci,^ .1 .? ^^^"^ '^^''P' J^^stvisiWe from above; internasals 

 shorter than the prefrontals; frontal once and a half to once and 

 two thirds as long as broad, as long as its distance from the end 

 ot the snout shorter than the parietals ; loreal longer than deep ; 

 one (rarely two) pras- and two postoculars ; temporals 1+2- 

 eight upper labials, fourth and fifth entering the eye; four Wer 

 abials m contact with the anterior chin-shields, which are as 

 long as or a ittle longer than the posterior. Scales in 19 rows. 

 Ventrals 158-1 1 9 ; anal entire ; subcaudals 55-81. Uniform dark 

 olive-brown above ; upper lip and lower parts yeUowish white, 

 lotal length 700 millim. ; tail 135. 

 South Africa. 



«-c. c? (V. 167 ; 0. 7i) 

 2 (V. 164, 159; C. 58, 

 57). 



d. Hgr. (V. 179 ; C. 72). 



e. Hgr. (V. 175; C. 70). 

 /. d (V. 173 ; C. 60). 



(/. 2 (V. 175 ; C. 69). 

 h~i. 2 (V. 175; 0.70) & 



yg. (V. 169 ; C. 70). 

 k. d (V, 171 ; C. ?). 



I. Skull. 



& Cape of Good Hope. 



Cape Colony. 



King William's Town. 



Port Natal. 



Port Natal. 

 Pretoria, Transvaal. 



Matabele-land. 



Cape of Good Hope. 



J. P. M. "Weale, Esq. 



[P.]. 

 H. Trevelyan, Esq. 



[P.]. 

 Rev. H. Calloway 



[P.]. 

 Mr. T. Ayres [C.]. 

 W. L. Distant, Esq. 



[P.]. 

 C. Beddington, Esq. 



[P.]. 



38. TETRALEPIS. 



Tetralepis, Boettger, Ber. Offenb. Ver. Nat. 1892, p. 124. 



Maxillary teeth 14, third to eighth longest, the six last gradually 

 decreasing in size ; mandibular teeth increasing in size to the fifth 

 posterior very small. Head small, not distinct from neck; eye 

 rather smaU, with round pupil ; nasal single. Body cylindrical • 



Pig. 18. 



Maxillary and mandible of Tetralepis friihstorferi. 



scales smooth, without pits, in 15 rows ; ventrals rounded. Tail 

 rather short; subcaudals in two rows. Hypapophyses developed 

 throughout the vertebral column. 

 Java. 



