130 iGUANin^. 



a whorl of much smaller scales, which are smooth and shorter on 

 the upper surface of the tail, louger and keeled on the lower sur- 

 face ; the large caudal scales at least four times as large as the 

 largest tibials. Olive above, with one to seven uninterrupted trans- 

 verse black bands on the nape and back, that between the fore 

 limbs being constant; lower surfaces and tail yellowish, throat 

 bluish grey or with bluish-grey reticulation. 



Total length 260 millim. 



Head 29 „ 



Width of head 23 „ 



Body 91 „ 



Fore limb 56 „ 



Hind limb 82 „ 



Tail (reproduced) 140 



)> 



Madagascar. 



a, h, c. Ad. & yg. ? Sir E. Belcher [P.]. 



2. Hoplurus cycliinis. 



Tropidurus cyclurus, Gray, Cat. p. 225. 

 Cordylus brasiliensis, var. /3, Laur. Syn. Rept. p. 52. 

 Uromastyx cyclurus, Merr. Tent. p. 56; JVied, Nuva Acta Ac. Leop.- 



Carol.'xh. 1828, i. p. 129, pi. xv. 

 Oplurus torquatus, Cuv. It. A. 2nd ed. ii. p. 48. 

 Tropidurus cuvieri, Gray, Griff. A. K. ix. Syn. p. 41. 

 Oplurus maximiliani, Bmn. ^- Bihr. iv. p. 305. 

 Doryphorus maximihani, Fitziny. Syst. Rept. p. 77. 

 Hopluru8 barnardi, part., Peters, Mon. Berl. Ac. 1854, p. 616. 

 cyclurus, Peters, Reise n. Mossajuh. iii. p. 32, pi. vi. fig. 2. 



Upper head-scales very feebly keeled ; ccciijital moderate ; an- 

 terior border of ear not denticulated. Nuchal crest merely indi- 

 cated by a few tubercular scales. Dorsal scales very slightly larger 

 than ventrals, roundish, subimbricate, smooth or indistinctly keeled ; 

 gular and ventral scales smooth. Scales on the limbs keeled, larger 

 than dorsals. Tail little longer than head and body, with whorls 

 of large spinose keeled scales which are larger than in H. sehce, and 

 have the posterior edge finely serrated. Olive above, with more or 

 less distinct dark cross bands on the nape and back, that between 

 the fore limbs black, and interrupted on the dorsal line ; lower sur- 

 faces whitish, throat variegated with grey. 



Total length 139 millim. 



Head 18 



It 



5> 



Width of head 13 



Body 46 „ 



Fore limb 27 ,, 



Hind limb 41 



ij 



Tail 75 „ 



Madagascar. 

 a. Hgr. ? 



