REPTILIA. 303 



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

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

 panded and finely striated beneath with transverse folds. Skin 

 under 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 refulgens SCHL. ; Dracontura izlineata BERTH., Dracontura 

 Bertholdi FITZ., BEKTHOLD Ueber einige neue oder wenig bekannte Amphi- 

 bienartm, 1842, Tab. n. fig. 7. 



Dactyloa WAGL. Toes furnished with an obovate expansion. 



a) With abdominal scales flat, often imbricate. 



Sp. Anolius punctatus DAUD., Rept. iv. PL 48, fig. i, Anolis viridis MAXIM., 

 Abb. zur Naturgesch. Bras., Rept. 7; Anolius lineatus GBAVENH., DUM., 

 Lacerta strumosa L., BAUD. Rept. iv. PL 48, fig. i ; Anolius Cepedii 

 MEEK., Anolius alligator DUM., BIBB., le Roquet LAC. Quadr. orip. i. PL 27. 

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

 erect crest, which, in Anolius veliferCuv., R. Ani. PL v. fig. i, is supported 

 by the spinous processes of the caudal vertebrae. 



b) With abdominal scales granular, very small. 



Pseudochamcdeon FITZ., Chamcdeolis COCTEAU. Sp. AnoUs chamcdeonides 

 DUM., BIBB. 



Lcemanctus WIEGM., FITZ., Ecphy motes FITZ. 



Sp. Lcemanctus acutirostris WIEGM., DUM. and BIBB., Polychrus acutirostris 

 SPIX, Lacert. Tab. xv. a; no femoral pores ; palate without teeth; the toes 

 without dilatation. 



Note. FITZINGER places here as sub-genera the genera Norops 

 WAGL., and Urostrophus DUM. and BIBR. 



Polychrus Cuv., MERR. 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 Thesaur. 11. 

 Tab. 76, fig. 4, tongue fancied, LAC. Quadr. ovip. et serp. i. PL 26,-GuEBiN 

 Iconogr., Rept. PL 1 1, fig. 3, &c. ; Brasil, Surinam. These and some other 

 lacertine animals of the same family possess the property of changing 

 colour, like Chamceleon and Calotes of the eastern hemisphere. 



