REPTILIA. 303 



small; membrane of tympanum rather depressed. Scales all small. 

 Femoral pores none. Toes very miequal, with last phalanx ex- 

 panded and finely striated beneath with ti-ansverse folds. Skin 

 mider the throat mostly expanded into a sac. Tail long. 



Dracontura Fitz., Draconura Wagl. Toes scarcely expanded. 

 Middle dorsal scales larger than lateral. Tail somewhat round, 

 very long. 



Sp. Anolius re/ulgens Schl. ; — Dracontura iilineata Berth., Dracontura 

 Bertholdi Fitz., Beethold Ueber einige neue oder icenig bekannte Amphi- 

 hienarten, 1842, Tcab. 11. fig. 7. 



Dactyloa Wagl, Toes furnished with an obovate expansion. 



a) With abdominal scales fiat, often imbricate. 



Sp, Anolius punctatus Daud., Eept. iv. PI. 48, fig. 2, Anolis riridis Maxim., 

 Abb. zur Naturgesch. Bras., Rep,. "J;— Anolius lineatus Gravenh., Dtjm., 

 Lacerta strumosa L., Daud. Rejn. iv. PI. 48, fig. i;— Anolius Cepedii 

 Mere., 4M0?ms alligator Ddm., Bibe., le Roquet Lac. Quadr. ovip. 1. PI. 27. 

 These are small species, often with lively colours. In many the tail has an 

 erect crest, which, in Anolius veliferCvY., R.Ani. PI. v. fig. i, is supported 

 by the spinous processes of the caudal vertebrae, 



b) With, abdominal scales granular, very small. 



Pseudochamalcon Fitz., Chamceleolis Cocteau. Sp. Anolis chamceleonides 

 DuM., Bibe. 



Lcenianctus WiEGM., Fitz., Ecpliymotes Fitz. 



Sp. Lcemanctus acutirostris Wiegm., Ddm. and Bibr., Poli/chrus acutirostris 

 Spix, Lacert. Tab. XV. a; no femoral pores ; palate without teeth; the toes 

 without dilatation. 



Note. — FiTzixGEB places here as sub-genera the genera Norops 

 Wagl., and Urostrophus Dum, and Bibr. 



Polychrus Cuv., Mere. Head depressed above, covered with 

 flat unequal scutella, the middle and anterior larger. Anterior 

 maxillary teeth subulate, posterior compressed, obsoletely tricuspi- 

 date. Palatine teeth short, conical. Scales small, mostly carinate, 

 imbricate. Throat folded, dilatable like a sac. Row of small 

 femoral pores. Tail very long. 



Sp. Polychrus marmoratus Cuv., Lacerta marmorata L., Seba TJiesaur. 11. 

 Tab. 76, fig. 4, tongue fancied, Lac. Quadr. ovip. et scrp. i. PL 26, Guerin 

 Iconogr., Rept. PI, n, fig. 3, &c. ; Brasil, Surinam. These and some other 

 lacertine animals of the same family possess the property of chancing 

 colour, like Chamceleon and Calotes of the eastern hemisjihere. 



