42 LACERTID^. 



millim. millim. 



Fore limb 45 43 



Hind limb 71 72 



Tail ( rc])roducc(l) 190 165 



Madeira and Canary Islands. 



a. Yg. Madeira. P. B. Webb, Esq. [P.]. 



&, c. cJ'&Tg. Tcneriffe. H.M.S. ' Cballeiiger.' 



d-e. 2 & ligr- ? Lord Derby [P.]. (Types of 



Zontoca derbiana.) 

 f-g, h-i. 2 > ■ ? (probably Orotava). R. Mc Andrew, Esq. [P.]. 



hgr., & yg. 



20. Lacerta atlantica. 



Zootoca galloti, part., Gray, Cat. p. 30. 

 Lacerta atlantica, Peters Sf Daria, Ann. Mus. Genova, xviii. 1882, 

 p. 433 ; Bedriaya, Ahh. Senckenb. Ges. xiv. 188G, p. 314. 



Head rather strongly depressed ; snout long, obtusely pointed. 

 Eostral not entering the nostril ; a single postnasal ; four upper 

 labials anterior to the subocular ; a series of granules betAveen the 

 supraoculars and the supraciliaries ; occipital, in the adult, broader 

 than the interparietal ; temporal scales granular ; no masseteric 

 shield ; tympanic distinct ; usually a few enlarged supratemporals ; 

 anterior border of ear denticulated. Gular fold distinct ; 24 to 27 

 gular scales on a line between the collar and the third pair of chin- 

 shields ; collar with serrated edge, composed of 7 to 9 plates. Dorsal 

 scales rhomboidal, slightly imbricate, obtusely and diagonally keeled, 

 larger than the laterals, of which two or three correspond to the 

 length of a ventral shield ; 46 to 50 scales across the middle of 

 the body. Ventral plates in 8 or 10 longitudinal and 27 to 29 

 transverse series. Prteanal plate moderately large, bordered by two 

 semicircles of small plates. The hind limb reaches the shoulder. 

 Upper crural scales much smaller than dorsals. Femoral pores 19 to 

 22. Tail not twice as long as head and body ; upper caudal scales 

 obtusely pointed posteriorly, diagonally keeled. Brownish above, 

 with whitish black-edged ocelli, most distinct on the sides and limbs, 

 and a light longitudinal streak on each side of the nape and back ; 

 belly and collar whitish ; throat bluish grey or black ; chin-shields 

 white, with a longitudinal blackish streak. 



millim. millim. 



Total length 152 From end of snout 



Head 15 to vent 60 



Width of head 10 Fore limb 21 



From end of snout Hind limb 38 



to fore limb 24 Tail 92 



Canary Islands ; Madeira. 



