190 



REPTILES. 



ff Tail with rings of large spinose scales. 



12. Cyclvra, Harlan. Iguana, part, Cwr. 

 Ctenosaura, part, Weigm. 



Head with flat or rather convex angular shields, those of the 

 muzzle larger, placed in pairs. The lower jaw with elongated 

 keeled scales on its sides. Throat with a lax skin, plaited across 

 but without any true pouch. Palate toothed. Teeth 3-lobed. 

 Femoral pores in a single series, numerous, each surrounded by a 

 number of scales. Back and tail crested. Tail compressed, with 

 whorls of scales and rings of larger spined scales, separated by .3 

 or 4 rings of small scales. Toes with 3 or 5 keeled plates beneath, 

 the two middle hinder ones fringed with a series of 3 or 4 horny 

 triangular processes on the inner side of each joint, forming a kind 

 of lateral claw. 



* Shields on the muzzle approximate. 



MacLeay's Cyclure. Cyclura MacLeayii. Cyclura cari- 

 nata, Gray^ Ann. N. H. 



Muzzle with 3 or 4 pair of transversely keeled many-sided 

 shields above, with only a few scales between the hinder pairs, the 

 rest of the head-shields small, subequal, with a central keel. 

 Olive, paler marbled and spotted; lower jaw with 1, then 2 series 

 of elongated keeled scales, separated from the labial shields by 

 small scales behind. 



a. Inspirits. Cuba. Presented by W. S. MacLeay, Esq. 



** Shields on the muzzle separated hy small scales. 



The Clouded Cyclure. Cyclura nubila, Gray^ Griffith^ 

 A. K. ix. 39. Weigm. Herp. Mex. 42. Lacerta nubila, Shaiv. 

 C. carinata, Harlan^ Journ. A. Nat. Sci. Phil. iv. 242, 250, t. 15. 

 Gray, Griffith, A. K. ix. 39. Weigm. H. Mex. 42. Iguana Cy- 

 clura, Cuv. R. A. ii. 45. C. Harlani, Coct. Sagra, Cuba, Erp. t. 

 6. Dum. et Bib. E. G. iv. 218. Catesby, Carol, ii. t. 64? 



Muzzle with three large keeled many-sided shields upon each 

 side, separated by small plates, and with a central shield behind 

 them, and one near the middle of the head ; dorsal crest of the 

 adult interrupted between the shoulders and loins. Grey or bluish 

 grey, with 6 or 12 crescent-like bands with irregular edges ; the 

 lower javv with a single series of larger keeled scales, and several 

 rows of minute scales between them and the labial plates. 



a. Half grown, in spirits. 



Colley's Cyclura. Cyclura Collei. 



Muzzle with 4 transversely keeled many-sided shields on each 

 side, rest of the head covered with small unequal shields ; dorsal 



