Dr. J. E. Gray on the Chamselconidse. 349 



3. Pterosaurus. 



Nose and chin simple. Back and tail with a high crest, supported 

 by long bony rays. Belly slightly dentated. Chin and back smooth- 

 edged. Orbit rounded. Occiput much produced, sloping, acute 

 behind, flat above, or rather concave, without any central ridge ; 

 hinder sides covered with very small scales. Scales small, with scat- 

 tered larger ones. 



1. Pterosaurus cristatus. B.M. 



Chameleo cristatus, Gray, Cat. B.M. 264. 



Sides with a series of larger circular scales. 



In spirits — red-brown, with numerous large, equal, roundish, white 

 spots. 



Hab. Fernando Po ; Old Calabar {Murray). 



One of the Museum specimens has two dark spots in front of the 

 upper part of the nose over the nostrils. Is this a sexual character? 



4. Microsaura. 



The occiput much narrowed and compressed behind, flat above, 

 with a slightly raised central keel ; the side of the occiput with a 

 smooth space, separated from the smooth temple by a central nodulous 

 ridge (as in Lophosaura). Back and chin with a crest of small com- 

 pressed scales. Belly not dentated. Scales of body unequal ; of legs 

 equal, flat. 



1. Microsaura melanocephala. B.M. 



White (in spirits), head and shoulders black, fore legs blackish ; 

 scales of the body granular, small, convex ; with a longitudinal series 

 of large, circular, slightly raised tubercles on the middle of each side, 

 and with a similar series of small tubercles on the sides of the middle 

 of the back ; scales of the legs larger than those of the body, flat, 

 equal. 



Hab. S. Africa, Port Natal, 1862. 



Head of Microsaura melanocephala. 



5. Phumanola. 



Nose and chin simple. Back with a series of large bony tubercles 

 covered with scales. Orbit very prominent, rounded. Occiput tri- 

 angular, with a central nodulous ridge ; small convex scales. Scales 

 uniform, convex. Forehead, crown, and back of chin and belly not 

 toothed. Tail cylindrical, rounded above. 



