1. cnAMiELHoy, 457 



similar to that of C. ccthiptratus ; a strongly compressed long bony- 

 rostral process, with straiglit smooth edges, rounded at the end ; 

 this rostral process covered with Hat scales. No enlargorl tubercles 

 on the body ; a denticulated crest along the back and belly. 



millim. milliiu. 



Head 36 Greatest depth of casque 32 



Rostral appendage .... 7 Body Ill 



Greatest width of casque 13 Tail 122 



Western coast of Madagascar. 



o'' 



19. Chamaeleon melanocephalus. 

 Microsaura melanocephala, Gray, Pruc. Zoul. Sac. 18G4, p. 474, fig. 



Casque feebly elevated, narrow and pointed posteriorly ; the 

 distance between the commissure of the mouth and the extremity of 

 the casque is less than the length of the mouth ; no rostral ap- 

 pendages ; crests feeble ; a distinct parietal crest and a temporal on 

 a line with the eye ; the temple between the crests covered with 

 large, unequal, flat scales ; no occipital lobes. Scales of back and 

 sides granular, intermixed with scattered enlarged, round, flat 

 tubercles ; a series of isolated oval tubercles along the vertebral 

 line ; ventral scales uniformly granular ; no ventral crest ; a series 

 of conical enlarged tubercles along the throat. No tarsal process. 

 Tail nearly as long as head and body, 



millim. 

 Total length 112 



From end of snout to extremity of mandible . . 13 



From end of snout to extremity of capque .... 17 



Greatest width between lateral cranial crests . . 6 



Depth of skull (mandible included) 11 



Width of head 8 



Body 45 



Tibia 9 



Tail 54 



South Africa. 



2 ' Natal. (Type.) 



a. 



b. Yg. Kiugwilliamstown. 



D 



20. Chamgeleon gutturalis. 

 Chamaeleon gutturalis, Smith, III. S. Afr., Rept., App. p. 3. 



" Occipital casque three-sided, produced and pointed behind ; 

 upper surface of head covered with pointed tubercles, circular or 

 compressed ; palpebral ridges and edges of occipital crest strongly 

 denticulated ; temples intersected by a raised dentated ridge, the 

 scales above and below large, flat, and smooth. Back and tail 

 surmounted with a row of three-sided tubercles ; body and tail 



