518 Mr. G. A. Boulenger on new 



enlarged, separated by one series of scales ; two strongly 

 enlarged supraoculars, broader than long and in contact with 

 the supraorbitals ; occipital larger than the ear-opening, 

 separated from the supraorbitals by two series of scales ; 

 canthus rostralis sharp, canthal scales four ; loreal rows five ; 

 six or seven labials to below the centre of the eye ; ear-opening 

 moderately large, oval. No gular appendage (female) ; gular 

 scales feebly keeled. Body cylindrical. Dorsal scales small, 

 flat, keeled, becoming gradually smaller towards the sides, 

 where they are minute and granular; ventral scales larger 

 than dorsals, flat, juxtaposed, faintly keeled. The adpreased 

 hind limb reaches the eye ; digital expansions moderately 

 broad ; 1(3 lamellas under phalanges ii, and iii. of the fourth 

 toe. Tail not compressed, once and two-thirds as long as 

 head and body, covered with large strongly keeled scales, 

 lieddisli brown above, with a series of six small dark brown 

 spots on the spine ; a rusty, dark-edged cross-band between 

 the eyes ; lower parts much obscured by brown dots. 



mm. 



Total len<>th 143 



Head 15 



Width of head , 9 



Body 38 



Fore limb 21 



Hind limb 39 



Tibia 12 



Tail 90 



A sinji'le female specimen from San Antonio. 

 Allied to A. fusco-auratus, a' Oxh. 



Pi ionodactylus 'palmer i. (Fig. 3.) 



Snout short ; body rather short. Upper head-shields 

 distinctly striated ; fronto- nasal single, forming a short suture 

 with the frontal ; fronto-parietals, parietals, and interparietal 

 subequal in size ; three occipitals, median smallest ; two 

 large transverse postoccipitals ; three supraoculars, first 

 largest; nostril between two nasals ; posterior nasal, loreal, 

 and freno-ocular forming a triangle ; upper temporals large, 

 lower small, not keeled ; seven upper and five lower labials ; 

 chin-shields, one anterior and four pairs, the two first pairs 

 forming a suture; a double longitudinal row of transversely 

 enlarged gulars ; collar-shields eight, the median pair very 

 large. Dorsal scales strongly keeled, about twice as long as 

 broad ; upper lateral scales small, hexagonal, keeled, lower 

 very small, granular, smooth ; 50 scales, including ventral 



