REPTILIA. 291 



Sp. Chamcesaura anguina SCHNEID., Lacerta anguina L., VOSMAER, Beschrij- 

 viny van de zeldzame langstaartige, ruwgeschubde slanghagedis, Amsterdam, 

 1774, LACEP. Ann. du Mus. n. PI. 59, fig. I, Lezard monodactyle; from 

 the Cape of Good Hope. 



Chalcides DAUD., Cuv. (Chalcis, Tetradactylus, 

 Palatine teeth none. Four very short feet, with four toes or three, 

 hinder sometimes adactylous. Lateral furrow behind fore feet. 



Chalcides DUM., BIBK. Auditory aperture none. Lateral furrow 

 evanescent at the middle of trunk. 



Sp. Chalcides cophias MERR., LACEP. Quadr. ovip. et Serp. I. PI. 32 (copied 

 in BECHSTEIN Naturgesch. d. Amph. n. Tab. xv. fig. 2); S. America, &c. 



Saurophis FITZ. Auditory aperture distinct. Lateral furrow 

 extending as far as hind feet. Femoral pores. (Feet all tetra- 

 dactylous.) 



Sp. Chalcides tetradactylus DAUD., Saurophis Lacepedii DUM. and BIBR., 

 LACEP. Ann. du Mus. n. PI. 59, fig. 2, GUERIN Iconogr., Rept. PI. 16, 

 fig. a ; South Africa. This sub-genus is perhaps more nearly allied to 

 Gerrhosaurus (p. 292) than to Chalcides. 



Chirocolus'WAGL., FITZ., Heterodactylus SPIX, DUM., BIBR. 

 Palatine teeth none. Four short feet, posterior pentadactylous, 

 anterior tetradactylous, with a clawless tubercle for a great toe 

 (pollex). Auditory aperture none. Femoral pores. Sides of trunk 

 not fun-owed. 



Sp. Chirocolus imbricatus WAGL., Heterodactylus imbricatw SPIX, Spec. nov. 

 La/cert. Bras. Tab. 27, fig. i. 



Ecpleopus DUM. and BIBR. 



Lepidosoma Spix, WAGL. Pentadactylus DUM., BIBR. 



On the genera, with palate edentulous, feet pentadactylous, lateral furrow 

 none, comp. DUM. and BIBR. 1. 1. Tom. v. p. 428 488, and TSCHUDI Die 

 Familie der Ecpleopoda, Archivf. Natwrgesch. 1847, s - 4 1 6> WDO ^ds the 

 new genera, distinguished by smooth scales, Euspondylus and Proctoporus. 

 All the species hitherto known, which are not numerous, are from South 

 America. 



Gerrhonotus WIEGM. Maxillary teeth cylindric, palatine very 

 small, few, sometimes none. Four feet pentadactylous. Femoral 

 pores none. Membrane of tympanum open, depressed. Longitu- 

 dinal furrow on both sides. Scales of back hard, scutiform, 

 mostly carinate. Tail long, verticillate, unarmed. 



192 



