456 CnAMiELEOMTID^. 



millim. 



Greatest width between lateral cranial crests . . 11 



Depth of skull (mandible included) 16 



Width of head 11 



Body 56 



Tibia 15 



Tail 90 



Comoro Islands. 



a-h. S & hgr. Comoro. Sir J. Kirk [C.]. (T^-pes.) 



I strongly suspect that C. polleni wUl prove to be the female of 

 C. cephalolepis. 



17. Chamaeleon rhinoceratus. 



Chamseleo rhinoceratus, Grai/, Cat. p. 267. 

 Sauroceras rhinoceratum, Gray, Proc. Zool. Soc. 1864, p. 478. 



Casque not much elevated posteriorlyj with strong parietal crest ; 

 the distance between the commissure of the mouth and the extremity 

 of the casque is a little less than the length of the snout ; lateral 

 crest distinct all round the head, tubercular on the canthus rostralis 

 and rostral appendage ; end of snout with a long bony process, which 

 is concave above and grooved inferiorly at the extremity ; casque 

 angular posteriorly ; head-scales large, of irregular size ; no trace 

 whatever of occipital lobes. Body covered with small granules 

 intermixed with scattered, enlarged, flat tubercles ; a crest of 

 isolated conical 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. A whitish lateral band, beginning above the arm. 



millim. 



Total length 144 



From end of snout to extremity of mandible 17 



From end of snout to extremity of casque (rostral 



appendage included) 25 



Greatest width between lateral cranial crests 8 



Depth of skull (mandible included) 14 



Width of head 10 



Body 52 



Tibia 11 



'~:k 



Tail VD 



Madagascar. 

 a. J . Madagascar. Sir E. Belcher [P.]. (Type.) 



18. Chamaeleon labordii. 

 Chamseleo labordi, Grandid. Ann. Sc. Nat. (5) xv. 1872, art. 20. 



Casque very much elevated posteriorly, with curved parietal crest, 



