250 REPTILES. 



22. LoPHOGNATHUs, Chay. 



Head elongate. Forehead shelving, nearly flat, covered with 

 keeled scales. Eyebrows keeled. The back covered with keeled 

 rhombic scales, placed in oblique rather ascending series. Limbs, 

 tail, chest and belly with larger scales placed in longitudinal se- 

 ries. Nape and paratoids with a crest of short compressed scales. 

 The nuchal crest is continued in a slight keel down the back. 

 Tail elongate, tapering. Femoral pores 2 or 3, rather iiTCgular. 

 Two preanal pores on each side, near the base of the lower side of 

 the thigh. 



This genus differs from Calotes in being furnished with pores. 



The LoPHOGNATHE. Lophognathus Gilbertii, Gray^ Zool. 

 Misc. 53. Zool. Erehus and Terror, t. 



Olive-green, chin and throat greener ; the upper lips, a broad 

 streak under the ears, bent up and continued along the sides, be- 

 coming narrower near the hind legs, and a second small streak on 

 the sides of the throat, white ; tail obscurely black-ringed ; nuchal 

 crest short, low, continued by a very slightly raised keel to the base 

 of the tail ; scales of the back small, keeled, of the limbs, tail, 

 chest and belly longer, lozenge-shaped. 



a, h. N. Australia, Port Essington. From Mr. Gilbert's collection. 

 e — e. N. Australia, Port Essington. Presented by Dr. Richardson. 



23. DiPOROPHOEA, Gray. 



Head short, forehead shelving, nearly flat, covered with small 

 keeled scales. Eyebrows keeled. The back covered with keeled 

 rhombic scales. Limbs, tail, chest and belly with larger keeled 

 rhombic scales, all placed in longitudinal series. Back slightly 

 keeled on each side. Nape with a very obscure keel. Tail elon- 

 gate, tapering, subangular. Femoral pores none. One preanal 

 pore on the side, near the base of the lower side of the thigh. 



This difi'ers from Grammatophora in having only 2 preanal 

 pores ; in form it is intermediate between that genus and Calotes. 



The DiPOROPHORE. Diporophora bilineata, Gray, Z. M. 54. 

 Zool. Erehus and Terror, t. 



Pale brown (in spirits), with black spots forming 7 cross bands 

 on the body and black rings on the tail ; a narrow streak on each 

 side of the neck and front of the body, and a few scales in cross 

 series on the sides of the body, yellow ; throat grey ; chest, belly 

 and under side of limbs and base of tail, yellow ; the feet pale ; a 

 group of 2 or 3 small conical spines in front, one over the top and 

 one or two on the paratoid behind the ear. 



a — c. In spirits. N. Australia, Port Essington. From Mr. Gil- 

 bert's collection. 



d. In spirits. N. Austmlia, Port Essington. Presented by B. 

 Bynoe, Esq. 



