30. HElEllODACTYLtlS. 31. rERODACTTLUS. 423 



indistinct, light, dark-edged, dorso-lateral band ; lower surfaces 



yellowish. 



millim. millim. 



Total length 400 From end of snout 



Head 10 to vent 110 



Width of head 14 Fore limb 17 



From end of snout Hind limb 31 



to fore limb .... 30 Tail 290 



Brazil. 



a. cJ. Montequeira Mountains. G. L. Hunt, Esq. [P.]. 



i. 2 . S. America. Paris Museum, 



c. ^ . S. America. Zoological Society. 



2. Heterodactylus lundii. 



Heterodactylus lundii, Reinh. Sf Liitk. Vidensk. Meddel. 18G1, p. 214, 

 pi. yi. fig. 10. 



More slender, wdth shorter hind limbs and narrower head. 

 Frontonasal as long as broad ; parietals separated, the posterior 

 angle of the frontal being truncate and forming a suture witli 

 a small interparietal. Scales on the upper and lateral surface of 

 neck smaller ; dorsal scales with shorter posterior point ; thirty 

 transverse series of ventrals. Oue proeanal and one femoral pore 

 on each side. Dorso-lateral light band narrower. 



millim. millim. 



Total length 160 From fore limb to vent 39 



From end of snout to Fore limb 7 



fore limb 13-5 Hind limb 12 



Serra da Piedade, Brazil. 



31. PERODACTYLUS. 



Perodactylus, Reinh. Sf Liitk. Vidensk. Meddel. 1861, p. 218 ; Peters, 

 Abh. Berl. Ac. 18G2, p. 188. 



Head with large regular shields ; frontonasal separating the 

 nasals ; pra^frontals and frontoparietals present ; nostril pierced 

 in the middle of a single nasal. Eyelids developed, lower with a 

 transparent disk. Ear exposed. Limbs well developed, tho inner 

 finger rudimentary, clawless. Dorsal scales hexagonal-lanceolate, 

 keeled, imbricate, forming transverse series, similar to the caudals ; 

 lateral and ventral scales smooth, rounded, imbricate, the ventrals 

 transversely dilated and forming four longitudinal rows. No collar 

 fold. Tail cylindrical. Females without femoral pores. 



BrazO. 



1. Perodactylus modestus. 



Perodactylus modestus, Reinh. ^ Llitk. I. c. pi. v. fig. 7. 

 Iphisa (Perodactylus) iiiodcsta, I'ctcrs, I. c. 



Body elongate ; snout truncate. Frontonasal large, broader than 



