54 LACERTID^. 



as long as head and body ; upper caudal scales strongly keeled. 

 Greyish or brownish above, with large black spots sometimes 

 confluent into irregular transverse bands on the back ; the black 

 spots with round white ones in the centre ; lips with vertical 

 black bars ; lower surfaces white (in spirit), black-spotted in the 

 adult. 



millim. millim. 



Total length 289 337 



Head 17 20 



Width of head 12 14 



From end of snout to fore limb .... 27 3o 



From end of snout to vent 94 112 



Fore limb 24 27 



Hind limb 35 39 



Tail 195 225 



South Africa. 



a, h-d. c?, .9 , & hgr. S. Africa. Sir A. Smith [P.]. 



e-f, ff. o,2,&jg. S. Africa. 



h. (S ■ Peri Bush, S.E. H. Treveljan, Esq. [P.]. 



Africa. 

 «. c? • Eastern District of F. P. M. Weale, Esq. 



Cape Colony. [P.]. 



k. fj. Damaraland. 



9. LATASTIA. 



Latastia, Bedriaga, Ann. Mus. Genova, xx. 1884, p. 307 ; Lataste, 

 Ann. Mils. Genova, (2) ii. 1885, p. 125. 



Head-shields normal. Nostril pierced between two or three 

 nasals and the first upper labial. Lower eyelid scaly. Collar well- 

 marked. Dorsal scales juxtaposed or imbricate ; ventral shields 

 quadrangular, feebly imbricate, smooth. Digits subcylindrical, with 

 keeled lamellae inferiorly. Femoral pores. Tail long, cylindrical. 



East Africa north of the equator ; Arabia. 



Synopsis of the Species. 



I. Dorsal and lateral scales small, subequal ; two superposed post- 



nasals. 



More than 50 scales (counting from the ven- [p, 55. 



trals) across the middle of the body 1. longicaudata, 



Less than 50 scales across the body 2. boscce, p. 56. 



II. Scales on the back larger than those on the flanks, imbricate. 



Two superposed postnasals ; dorsal scales sharply 



keeled 3. carinaia, p. 56. 



A single postnasal ; dorsal scales smooth or 



obtusely keeled 4. sjnnalis, p. 57. 



