1. CIIAM-ELEOy. 455 



tubercles, the canthi rostrales uniting on the end of the snout, 

 which, in the adult, projects beyond the labial mar;j:iii and is often 

 sliglitly hitid ; casque rounded or obtusely angular posteriorly ; head- 

 scales large, unequal, largest on the snout and on the occiput ; no 

 trace whatever of occipital lobes. Body covered with granules 

 intermixed with feebly enlarged, scattered, round, Hat tu))crclcs ; a 

 crest of pointed tubercles on the vertebral line ; a series of conical 

 tubercles forms a crest along the throat and belly, interrupted under 

 the neck. No tarsal process. Tail a little longer than head and 

 body. Commissure of the mouth whitish ; a whitish band along 

 each side, from above the arm. 



minim. 



Total length 485 



Prom end of snout to extremity of mandible . . 50 

 From end of snout to extremity of casque .... 68 

 Greatest width between lateral cranial crests . . 33 



Depth of skull (mandible included) 41 



Width of head 32 



Body 170 



Tibia 37 



Tail 205 



Madagascar, Bourbon, Mauritius. 



a. c?. Madagascar. 



b. 2 , stuffed. Madagascar. 



c. Hgr. Bourb'in. Paris Museum. 

 d-e,f. 6. ? 



g. Skeleton. Madagascar. 



16. Chamseleon cephalolepis. 



? Chanifeleo poUeni, Peters, Mon. Berl. Ac. 1873, p. 792. 

 Chamseleon cephalolepis, G'dnth. Ann. ^ Mag. N. H. (5) vi. 1880, 

 p. 237, tig. 



Casque broad and rounded, and not much elevated posteriorly ; a 

 strong parietal crest ; the distance between the commissure of the 

 mouth and the extremity of the casque equals the distance between 

 the former point and the nostril ; lateral crest distinct all round the 

 head, formed of large tubercles, which are largest on the eanthi 

 rostrales ; these unite on the end of the snout, where a pair of 

 conical tubercles, pointing forwards, project beyond the labial 

 margin ; head-scales large, subcqual, largest on the snout ; no trace 

 whatever of occipital lobes. Body covered with uniform small 

 granules ; a few isolated conical tubercles form a crest on the 

 anterior part of the back ; a series of conical tubercles forms a crest 

 along the throat and belly, interrupted under the neck. jN^o tarsal 

 process. Tail a little longer than head and body. 



millim. 



Total length 167 



From end of snout to extremity of mandible . . 21 

 From end of snout to extremity of casque .... 26 



