1. CHAMJJLEON. 439 



Claws simple ; scales oa soles smooth. Tail at least as long as 

 the body. 



Africa, Madagascar, south of Spain, Arabia, India, Ceylon. 



Synojjsis of the Species. 



I. A series of enlarged granules forms a crest on the median line of 

 the throat, often extending along the belly ; a whitish line or 

 band from chin to vent ; no rostral process. 



A . A series of tubercles or enlarged granules forms a crest or ser- 

 rated ridge, at least on the anterior part of the back. 



1. Scaling homogeneous. 



a. Casque more or less strongly raised posteriorly, with 



strong arched parietal (occipital) crest. 



a. Occipital dermal lobes at least indicated. 



* No ventral crest, the gra- 

 nules of the median 

 ventral line rounded ; 

 no tarsal process or spur 1 . vulgaris, p. 443. 



** A ventral crest ; male with a tarsal process or 

 spur. 



A large occipital lobe on each side, ex- 

 tending nearly to the extremity of the 

 parietal crest , 2. calcarifer, p. 444. 



Occipital lobe merely indicated ; the dis- 

 tance between the commissure of the 

 mouth and the extremity of the casque 

 does not exceed the distance between 

 the end of the snout and the extremity 

 of the mandible 3. calcwatus, p. 445. 



Occipital lobe merely indicated ; casque 



extremely elevated posteriorly 4. calyptratus, p. 446. 



j8. No trace whatever of occi- 

 pital dermal lobes ; male 

 with a tarsal process or 

 spur ; casque high 5. basilisciis, p. 446. 



b. Casque feebly raised posteriorly, with feeble or indistinct 



parietal crest. 



a. No trace whatever of occi- 

 pital dermal lobes ; no 

 tarsal process ; skin very 

 minutely granular 6. senegaleiisis, p. 447. 



