IGFAtflD^E. 277 



Family IGUANID.E. 



Temporal arcade and postorbital bar complete; supratemporal 

 fossa not roofed over by bone; premaxillae united. Dentition 

 pleurodont. Yertebra3 with zygospbenes. 



Genus IGUANA, Laurenti 1 . 



The type genus. In the case of the undermentioned fossils, the 

 term must be employed in a much wider sense than is the case in 

 recent zoology, where it is restricted to i". tuberculata and /. delica- 

 tissima. 



Iguana europsea, Filhol 2 . 

 Syn. Proiguana europeana, Filhol 3 . 



Imperfectly known ; if it prove to indicate a distinct genus, the 

 name Proiguana might be adopted were it not that this is a hybrid 

 term. The type specimens consist of portions of the jaws from the 

 Quercy Phosphorites ; and since the other Squamata from these 

 deposits appear to be identical with those from Hordwell, the pre- 

 sumption is that the undermentioned specimens belong to this species. 



Hab. Europe (France and ? England). 



32840 a. Three imperfect vertebrae ; from the Upper Eocene 



(Fig.) (Lower Oligocene) of Hordwell, Hampshire. The best 



preserved specimen (fig. 61), although of smaller size, 



agrees precisely with the dorsal vertebrae of existing 



Fig. 61. 



Iguana europcea. — Hsemal, anterior, and lateral views of a dorsal vertebra ; from 

 the Upper Eocene of Hordwell. \. zs, zygosphene ; c, costal articulation. 



Iguanas, and could scarcely be specifically distinguished 

 from the corresponding recent vertebra figured by Owen 

 in the ' Phil. Trans.' 1851, pi. li. figs. 40-43. Noticed 

 by the writer in the * Geol. Alag.' dec. 3, vol. v. p. 110 

 (1888). Hastings Collection. Purchased, 1S55. 



1 Syn. Kept. p. 47 (1768). 



2 Ann. Sci. Geol. vol. viii. p. 267 (1877). -Amended. ■ Ibid. p. 338. 



