REPTILIA. 291 



Sp. Chamasaura anguina Schneid., Lacerta anguhia L., Vosmaek, BeschriJ- 

 vimj van de zeldzame langstaartige, ruwgeschiibde slanghagedis, Amsterdam, 

 1774, Lacep, A7in. du Mm. 11. PI. 59, fig. r, Lezard monodactyle; from 

 the Cape of Good Hope. 



ChalcidesT>A.\iT).,G\5Y. {Chalcis, Tetradactylus, (7oZo&w.s Mere.) . 

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

 hinder sometimes adactylous. Lateral furrow behind fore feet. 



Chalcides DuM., Bibb. Auditory aperture none. Lateral furrow 

 evanescent at the middle of trunk. 



Sp. Chalcides copJiias Merr., Lacep. Quadr. ovip. et Serp. i. PI. 32 (copied 

 in Bechstein Naturgesch. d. Amph. 11. 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 Lacepcdii DuM. and Bibr., 

 Lacep. Ann. du Mus. it. PI. 59, fig. 2, Guerin Iconogr., Rept. PI. 16, 

 fig. 2 ; South Africa. This sub-genus is perhaps more nearly allied to 

 Gerrhosav/rus (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 furrowed. 



Sp. Chirocolus imhricatus Wagl., Heterodactylus imhricatus Spix, Spec. nov. 

 Lacert. Bras. Tab. 27, fig. i. 



Ecj>leopus 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 Tschddi Die 

 Familie der Ecpleopoda, Archiv f. Naturgesch. 1847, s. 41 — 60, who adds the 

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

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

 America. 



Oerrhonotus 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. 



19—2 



