24. PHYSIGNATHTJS. 399 



Amphibolurus heterurus, Peters, Mon. Berl. Ac. 1866, p. 86. 

 Physignathus lesueurii, Gunth. Ann. Sf Mag. N. H. (S) xx. 1867, 

 p. 51. 



Head moderately elongate, large and thick in the male ; snout 

 slightly longer than the diameter of the orbit ; nostril nearer the 

 end of the snout than the orMt ; canthus rostralis, supraciliary and 

 supraorbital borders forming slight ridges ; tympanum half the 

 diameter of the orbit ; upper head-scales very small, very strongly 

 keeled ; occiput and temple -with numerous conical and compressed 

 tubercles. Gular scales subimbricate, indistinctly keeled, inter- 

 mixed on the sides with enlarged suboval tubercles forming irregular 

 longitudinal series ; some of the hindermost of these tubercles 

 conical ; a row of slightly enlarged shields on each side, parallel 

 with the infralabials. Nuchal crest composed of a few triangular 

 compressed spines ; dorsal crest a serrated ridge. Dorsal scales 

 minute, granular or subimbricate, keeled, intermixed with enlarged, 

 roundish, keeled tubercles forming irregular transverse series ; 

 ventral scales larger than dorsals, imbricate, keeled. Limbs long, 

 scaled like the back ; the adpressed hind limb reaches between the 

 eye and the end of the snout. Sixteen to twenty-two femoral pores 

 on each side. Tail strongly compressed, crested like the back, twice 

 and a half as long as the body ; superolateral scales very small, inter- 

 mixed at the base of the tail with enlarged tubercles ; lower scales 

 larger. Dark olive above, with darker and lighter cross bands ; a 

 broad black band from the eye to above the shoulder, involving the 

 tympanum ; belly pale olive, dotted with black ; throat with black 

 longitudinal lines in the young. 



Total length 466 miUim. 



Head 46 „ 



Width of head 39 „ 



Body 120 „ 



Fore limb 80 „ 



Hiud limb 150 „ 



Tail (reproduced) 300 „ 



Queensland. 



a, b. Adult, stuffed. Australia. 



c-d,e. 2 & yg- Australia. G. Krefft, Esq. 



f,g. d S • Australia. 



6. Fhysiguatlius cochiuchiuensis. 



Physignathus concinnus, Oray, Cat. p. 248. 

 Physignathus concinnus, Cuv. S. A. 2nd ed. ii. p. 41. 

 Istiurus cochineUnensis, Guerin, Icon. It. A.,Iiept.^\. ix. fig. 2. 

 Lophura concinna, Oray, Griff. A. K. ix., 8yn. p. 60. 



cuvieri, Gray, I. c. 



Istiurus physignathus, Dum. 8f Bibr. iv. p. 387. 

 Physignathus cochinchinensis, Gunth. Mept. Brit, Ind. p. 163. 



