386 TEIID^. 



13. LEPOSOMA. 



Leposoma, Spix, Spec. Nov. Lacert. Bras. p. 24; Peters, Mon. Berl. 



Ac. 1880, p. 217. 

 Lepidosoma, Woql. 8i/st. Amph. p. 167 ; Tschndi, Arch.f. Nat. 1847, 



p. 44 ; Peters, 'Abh. Berl. Ac. 1862, p. 189. 

 Lepisoma, part.. Gray, Cat. Liz. p. 60. 



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

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

 nasal separating the nasals ; prefrontals and frontoparietals present ; 

 nostril pierced in the middle of a single nasal. Eyelids developed, 

 lower with a transparent disk composed of several scales. Ear 

 exposed. Limbs well developed, pentadactyle. Scales of the body, 

 above and beneath, subequal, lanceolate-subhexagonal, strongly 

 keeled, imbricate, arranged in transverse and oblique rows, No 

 collar-fold. Tail subcylindrical. 



South America. 



1. Leposoma scincoides. 



Lepisoma sciucoides, part., Gray, Cat. p. 60. 

 Leposoma scincoides, Spix, I. c. pi. xxvii. tig. 2. 

 Lepidosoma sciucoides, Tschudi, I. c. p. 55 ; Peters, I. c. p. 190, pi. ii. 

 fig. 1. 



Head and body moderate. A broad frontonasal, with concave 

 posterior border ; a pair of small prcefrontals ; a frontal ; a pair of 

 frontoparietals ; two large parietals and a large interparietal ; no 

 occipitals ; four supraoculars ; all the upper head-shields rough, 

 longitudinally striated ; no loreal ; a very small upper and a larger 

 lower frenoorbital ; a row of very small infraorbitals ; temporal 

 scales small, keeled ; six upper and five lower labials ; chin-shields 

 very large, one anterior and three pairs, the two first pairs forming 

 a suture ; gular scales similar to the ventrals, but smaller ; no trace 

 of a collar. Body covered with uniform scales, which are rather 

 narrower on the belly ; twenty- three or twenty-four scales round 

 the middle of the body ; thirty-four scales from the occiput to the 

 base of the tail, and thirty-three from the third pair of chin-shields 

 to the vent. Four enlarged praeanals. Limbs with imbricate 

 keeled scales. Caudal scales like those of the body. Yellowish 

 brown above, with three or four rows of small black spots on the 

 back ; lower surfaces yellowish. 



millim. millin). 



Total length 99 From end of snout 



Head 9 to vent 37 



Width of head 4 Fore limb 9-5 



From end of snout Hind limb 15 



to fore limb 13 Tail 62 



Amazons. 



