21. ECPLEOPUS. 401, 



Sta Fe de Bogota. 



a-h. $ & \\^r. Sta F6 de Bogota. Prof. Peters [P.]. (Typical 



specimens.) 



21. ECPLEOPUS. 



Ecpleopus, Duin. 8; Bihr. v. p. 434; Tschucli, Arch. f. Natwff. 1847, 



p. 47 ; Peters, Ahh. Bcrl. Ac. 18G2, p. 195. 

 Cercosaura, part., Gray, Cat. p. 60. 

 Aspidolsemus, Peters, I. c. p. l'J9. 



ToDgue moderately elongate, arrow-headed. Lateral teeth com- 

 pressed, bi- or tricuspid. Head with large regular shields ; fronto- 

 nasal separating the nasals ; prtefroutals and frontoparietals pre- 

 sent ; nostril pierced in the middle of a single nasal or in the suture 

 between two nasals. Eyelids developed, lower with a non-trans- 

 parent disk composed of several scales. Ear exposed. Limbs well 

 developed, pentadactyle. Dorsal scales juxtaposed or but slightly 

 imbricate, elongate subhexagonal, smooth or very slightly keeled, 

 arranged in regular transverse series ; lateral scales small ; ventral 

 plates large, quadrangular, smooth, arranged in regular longitudinal 

 and transverse series. A slight collar fold. Tail cylindrical. No 

 prseanal or femoral pores. 



South America. 



1. Ecpleopus gaudichaudii. 



Cercosaura gaudichaudi. Gray, Cat. p. 60. 

 Ecpleopus gaudichaudii, Dum. 4" P>br. v. p. 436 ; Tschudi, I. c. ; 

 Guichen. in Castehi. Amer. Sud, Rept. p. 34, pi. vii. fig. 2 ; Peters, 

 I. c. p. 195. 



Nasal single ; no loreal ; priiefrontals forming a suture, separated 

 from the loreal by the anterior supraciliary, which is large, and 

 reaches the frontonasal; frontal twice as long as broad, smaller 

 than the interparietal ; latter much longer than broad, as broad as, 

 and a little shorter than, the parietals ; three supraoculars. Gular 

 scales small, squarish. Dorsal scales longer than broad, quadran- 

 gular, obtusely keeled, in thirty-three transverse series from the 

 occiput to the base of the tail ; ventrals scarcely larger than dorsals, 

 smooth. Three nearly equal prjeanals, on a transverse row. 

 Reddish brown above, with one or two light longitudinal lines on 

 each side ; lower surfaces white. 



millim. millim. 



Total length 120 Fore limb 9 



Head 10 Hind limb 12 



From end of snout 

 to vent 40 



Brazil. 



YOL. 11. 2 D 



