LIZAEDS. 191 



crest low, suddenly interrupted over the shoulder and loins ; olive, 

 darker marbled ; lower jaw with 2, and behind 3 or 4 series of 

 large elongated keeled scales, without any small many-sided ones 

 between them and the labial plates. 



a. Adult, stuffed. Jamaica. Presented by the Admiralty, from 

 Haslar Hospital. 



13. Ctenosauea, Grai/, Weiym. Uromastyx, Merrem. 

 Cyclura, part, Weigm. 



Head with numerous small subequal flat many-sided shields, 

 those of the upper part of the nose similar to the rest. Side of the 

 lower jaw covered with uniform rather elongated scales. Throat 

 with a lax skin plaited across, but without any true pouch. Pa- 

 late toothed. Teeth 3-lobed. Toes with 3 or 5 keeled plates be- 

 neath. Femoral pores in a single series, few (5 or 6) on each side. 

 Back with a crest often continued over the shoulder. Tail round, 

 crested above, and covered with rings of spinose scales, rather de- 

 pressed at the base, and with rings of spines, separated by 2 or 3 

 series of small scales. 



* Dorsal crest loiv. Tail round at the end. 



Shaw's Ctenosaure. Ctenosaura acanthura, Gray^ Griffith, 

 A. K. ix. 37. Blainv. Nov. Mem. Mus. iv. 288, t. 24, f. 1. Lacer- 

 ta acanthura, Shaiv,Zool. in. 216. Merrem, Tent.bQ. Gray, Ann. 

 Phil. ii. 57. Dum. et Bib. E. G. iv. 222. Ct. cycluroides, Weigm. 

 Isis, 1828, 371. C. lanceolata, Gray, Griffith, A. K. P Cyclura 

 teres, Harlan, J. A. N. S. Phil. iv. 246, 250, t. 16. Weigm. H. M. 

 42. Ct. armata. Gray, I. c. 37. Cycl. articulata, Weigm. H. M. 

 42. Cycl. denticulata, Weigm. H. M. 42, t. 3. Ctenosaurus 

 Shawii, Gray. 



Dorsal crest low, interrupted over the loins in the young, con- 

 tinued in the adults ; the spinose scales of the tail large, separated 

 by only 2 rings of small scales at the base, close to one another at 

 the end. 



a. In spirits. Rather bleached. California ? 

 h. Young, in spirits. Honduras. 



c. Young, in spirits. W. Indies ? Presented by Thomas Bell, 



Esq. 



d. Adult, stuffed. Tropical America. Presented by the Admi- 

 ralty from Haslar Hospital. 



*^ Dorsal crest high. Tail compressed at the end. 



Weigmann's Ctenosaure. Ctenosaura pectinata. Cyclura 

 pectinata, Weigm. H. Mex. 42, t. 2. Dum. et Bib. E. G. iv. 221. 



Olive brown, yellowish varied ; tail rather compressed ; dorsal 

 crest high, interrupted in front of the base of the tail. 



Inhab. Mexico, Mus. Berl. 



