Occasional Papers of the Mtiseum of Zoology 5 



concavity keeled; scales of supraorbital semicircles enlarged, 

 separated by two series of scales ; enlarged supraoculars nu- 

 merous, smooth or with a central swelling ; occipital small, one- 

 half the longest diameter of the ear; canthal scales five; ten 

 upper labials to below the center of the eye; six rows of scales 

 in the loreal region ; ear opening moderate, a vertical oval. 

 Gular appendage small. Body somewhat compressed ; tail 

 slightly compressed, with slightly prominent upper edge, its 

 length more than twice the length of head and body. Dorsal 

 scales granular, obtusely keeled ; ventrals large, rounded, dis- 

 tinctly keeled ; no enlarged postanal scales. The adpressed hind 

 limb reaches the front of the shoulder ; digital expansions well 

 developed, twenty-one lamellae under the second and third 

 phalanges of the fourth toe. 



The preserved specimen is dark reddish brown above with 

 faintly indicated darker cross bars on the body, limbs and tail. 

 The abdomen is white, except that the sides are encroached 

 upon laterally by the brown of the upper parts. The under 

 surface of the limbs and the submental, gular and pectoral 

 regions are pale brown, the gular and submental regions are 

 streaked with dark brown, and all of the scales on the free edge 

 of the gular pouch are dark brown. The skin of the gular 

 pouch is purplish black. 



mm. mm. 



Total length 216 Width of head 11 



Length of tail 152 Length of hind limb .... 39 



Length of head and body 64 Length of tibia 12 



Length of head to pos- Length of fore limb .... 21 



terior margin of ear . . 18 



Remarks: As has been stated, this form is. in the opinion 

 of the writer, allied to A. copei. It differs from that form in 

 having smoother head scales and shorter hind limbs. 



