182 LacertidH'. 



gulai- scales imbricate, [)as8iiii;' o-radually into the ventral plates, 22 

 in a straight median line. 



Dorsal scales rhombic-lancei)late, strongly keeled, acutely pointed, 

 a little smaller than upper caudals ; lateral scales a little smaller, 

 smooth towards the venti'al plates, into which they pass gradually; 

 ventral plates rounded-hexagonal, not broader than long, in 8 longi- 

 tudinal and 25 transverse series ; 36 scales and plates round the 

 middle of the body. Preanal region covered with irregular scales. 



Scales on limbs smaller than dorsals, strongly keeled. 11-12 femoral 

 pores. Subdigital lamellae tricarinate, 19 under the fourth toe. 



Caudal scales strongly keeled, upper similar to dorsals, 26 in the 

 ft>urth whorl behind the postanal granules. 



Bronzy olive above, with a few small transverse blackish spots in 

 three longitudinal series on the nape and two ou the body ; a black 

 streak from the nostril to the eye, and another on the edge of the 

 mouth ; a white, black-edged streak from below the eye, through the 

 ear, to above the axil ; white, black-edged ocellar spots on the posterior 

 part of the back, on the hind limits, and on the tail. Lower parts 

 whitish. 



Measurements (in millimetres^ : 



From end of snout to vent . . . .88 



,, ,, ,, fore limb . . .15 



Length uf head 10 



Width of head 6 



Depth of head ...... 4 



Fore limb 13 



Hind limb 21 



Foot 11 



This species is based ou a single male specimen, probably half- 

 grown, from the East Coast of Lake Tanganyika, presented to the 

 British Museum by Mr. W. H. Nutt in 1896. 



The feebly striated upper head-shields and the arrangement of the 

 nasal and supraocular shields are my reasons for regarding I. 

 tanganicana as the most generalized species of the genus. 



2. ICHNOTEOPIS BIVITTATA. 



Icliuotropls hiviUata, Bocage, Jorn. Sc. Lisb. i, 1866, p. 43 ; Petei-s, 

 Eeise Mossamb. iii, p. 48 (1882). 



Ichnotropix capensis, part., Bouleng. Cat. Liz. iii, p. 78 (1887); 

 Bocage, Herp. Ang. p. 30 (1895). 



