282 BARBOUR: ZOOGEOGRAPHY. 



Anolis opalinus Gosse. 

 Gosse, Ana. mag. nat. hist., 1850, ser. 2, 6, p. 345. Barbour, Bull. M. C. Z., 1910, 52, p. 296. 



A rare Jamaican species now. It is confined to the western part of the island, 

 where Gosse reported it as common; but as this region is not very densely popu- 

 lated, the mongoose has made greater ravages here than elsewhere among the 

 lizards. Near villages the mongoose is often hunted and killed as a pest, and near 

 these villages the lizards persist most abundantly. 



Anolis iodurus Gosse. 

 Gosse, Ann. mag. nat. hist., 1850, ser. 2, 6, p. 344. Barbour, Bull. M. C. Z., 1910, 52, p. 295. 



A species which has been confused with A. grahamii Gray. It is quite 

 widespread, but nowhere very common in Jamaica. 



Cope (Proc. Acad. nat. sci. Phila., 1861, p. 210) says: — "the ventral 

 plates of this species are usually smooth; they are sometimes carinate. Speci- 

 mens exhibiting the latter structure have been described by Dr. Hallowell as 

 A. punctatissimus." It is thus evident that Cope confused A. iodurus Gosse, 

 with smooth ventrals, and A. grahamii Gray, with keeled ventrals, as so many 

 herpetologists have. I have noted the distinctness of both these species and A . 

 opalinus in my Notes on the herpetology of Jamaica (Bull. M. C. Z., 1910, 52, 

 p. 295). 



Anolis conspersus Garman. 



Garman, Proc. Amer. philos. soc, 1887, p. 273. 



Garman, in describing this species, compared it with the Jamaican A. 

 grahamii. This is not apropos ; the species need comparison only with A . iodurus, 

 since it has perfectly smooth ventrals. Boulenger (Zool. rec. Rept. for 1887, 

 p. 10) says that this species is the same as A. grahamii, which is doubly incorrect. 

 The species is a distinct and easily recognizable one. The extremely sharp, 

 knife-like canthal ridge, and the very small occipital shield, as well as other 

 characters, distinguish this species at' once from its Jamaican ally, A. iodurus. 

 It is confined to Grand Cayman Island, whence we have a type series of eighty- 

 seven examples (M. C. Z., No. 6,021). 



Anolis distichus Cope. 

 Cope, Proc. Acad. nat. sci. Phila, 1861, p. 208. Boulenger, Cat. lizards Brit, mus., 1885, 2, p. 33. 



This species comes from New Providence, Great Abaco, and Cat Island in 

 the Bahamas; and, according to Boulenger, is the same as the A. dominicensis 



