8. CBEAIOPHORA. 9. HABPBSAUETJS. 279 



deeply concave; occiput with a pair of low ridges, convergent 

 anteriorly ; rostral appendage large in the male, cylindrical, pointed, 

 covered with small imbricate strongly keeled scales, absent or rudi- 

 mentary in the female ; ten to twelve upper and as many lower 

 labials. Gular scales smaller than ventrals, very strongly keeled. 

 ITo nuchal crest. Dorsal scales small, irregular, unequal, strongly 

 keeled ; ventral scales larger, very strongly keeled. Limbs above 

 with strongly keeled unequal scales ; digits very strongly keeled ; 

 fifth toe shorter than third ; the adpressed hind limb reaches be- 

 tween the shoulder and the orbit. Tail not compressed, covered 

 with subequal strongly keeled scales ; its length not more than 

 once and a half that of head and body. Brown, with lighter and 

 darker markings or longitudinal Hnes ; generally a rhombic mark 

 on the sacral region ; males with a large white spot or cross band on 

 the gular region. 



Total length 83 miUim. 



Head 11 



Width of head 6-5 



Body 26 



Fore limb 17 



Hind limb 26 



Tail 46 



Ceylon. 



a-b. cj ? . Ceylon. (Types.) 



e-f, S'-^- c? , ? , & yg- S. Ceylon. 



m~p, q-t. J , S , & yg. Ceylon. 



M-z. cJ , $ , & hgr. * Ceylon. G. H. K. Thwaites, Esq. [P.]. 



9. HARPESAUEUS. 



Aipephorus, (nrni Fischer de Waldh.) A. Dum. Cat. MUh. JRept. 

 p. 92. 



Tympanum distinct. Snout ending in a long compressed cuta- 

 neous appendage. Body and tail compressed, covered above with 

 equal smooth scales of moderate size. A dorsal crest. No gular 

 sac ; no transverse gular fold. No femoral or prseanal pores. 



Java. 



1. Harpesaums tricinctns. 



Arpephorus tricinctus, A. Dum. I. c. p. 93, and Rev. Mag. Zool. (2) 

 iii. 1851, p. 214, pi. vii., and Arch. Mus. viii. 1856, p. 371. 



Eostral appendage longer than the head, formed of a compressed 

 falciform scale curved upwards, surrounded at the base by a few 

 large scales. Upper head-scales small, slightly tubercular ; a large 

 prominent triangular scale on the snout ; canthus rostralis forming 

 a serrated ridge. Gular scales tubercular. Dorsal crest a low 

 serrated ridge. Dorsal scales smooth, equal, forming regular trans- 

 verse series ; ventral scales keeled. Scales on the limbs keeled. 



