Cope.] - 1 ' v) [Oct. 16, 



CACHRYX Cope. 

 Proceedings Academy Philada., 1866, p. 124. 



This genus is of the type of Ctenosaura, differing only in the characters 

 of its tail. It lacks the terminal portion which is in that and other genera 

 free from spinous scales. It is not in my opinion allied to Urocentrum or 

 Hoplocercus as suggested by Bocourt, genera which belong to the terres- 

 trial division of the family, or Humivagie. 



Cachryx defensor Cope. Proceeds. Acad. Phila., 1866, p. 124. Pro- 

 ceeds. Amer. Philos. Soc, 1869, p. 169, pi. 10. Bocourt, Miss. Sci. 

 Mexique, Reptiles, p. 148, pi. xvii. bis. figs. 12, 12a. 

 Yucatan, Schott. 



BRACHYLOPHUS Cuvier. 



Regne Animal, edit, ii, p. 41. Dumeril Bibron, Erp. Gen., iv, p. 225. 

 Gray, Catal. Brit. Mus., 1845, 187. Fitzinger Systema Reptilium, 1843, 

 p. 55. Chloroscartes Giinther, Proc. Zool. Soc. London, 1862. 



Brachylophus fasciatus Brong. Cuv. Regne Animal, ii edit., p. 41. 

 Dum. Bibron, Erp. Gen., iv, 1837, p. 226. Gray, Catal. Liz. B. M., 

 187. Chloroscartes fasciatus Giinther, Proceeds. Zool. Soc. London, 

 1862, pi. xxv. 

 Feejee Is. 



IGUANA Laurenti. 



Specimen Synopsis Reptilium, 1768, p. 47. Dumeril Bibron., Erp. Gen., 

 iv, 1837, p. 199. Gray, Catal. Brit. Mus., 1845, p. 186. Hypsilophus Wag- 

 ler, Nat. Syst. Amphib., 1830, p. 147. AmbUjrhynchus "Bell" Wagl., 1. c, 

 p. 148 (nee Bellii.). 



Iguana tuberculata Laurenti. 



Subspecies tuberculata Laurenti, 1. c, p. 49. Dum. Bibr., Erp. Gen., 

 iv, p. 203 ; Gray. Catal. Liz. Brit. Mus., 1845, p. 186. 



South America, east of the Andes ; Lesser Antilles. 



Subspecies rhtnolopha Wiegm. Iguana rMnolopha Wiegmann, Her- 

 petol. Mexicana, 1834, i, p. 44. Dum. Bibr., Erpet. Gen., iv, p. 207. 

 Iguana tuberculata var. "Wiegmann, Isis, 1828, p. 364 ; Cope, Proceeds. 

 Amer. Philosoph. Society, 1869, p. 161. 



Costa Rica, Oabb ; Tehuantepec, SumicJirast ; Colima, Xantus ; Cozu- 

 mel, Yucatan, Ridgway. 



Tierra Caliente of Mexico. 



Iguana delicatissima Laurenti. Specimen Syn. Reptilium, p. 48, 

 1768. Gray, Catal. Brit. Mus., 1845, p. 187. I. nudkollis Cuv., Regne 

 Animal, ii, p. 40. Dum. Bibr., Erp. Gen., 1837, iv, p. 208. 

 Guadalupe, Nevis, Obcr. 



