1898.] LIZAED COLLECTION Lff THE NATTRAL-HISTOBT MUSETTM. 921 



the two kinds of scales differing only in the greater breadth and 

 perfect smoothness of the former. 



Aetheoseps werneei, sp. n. (Plate LV. fig. 3.) 



Head depressed ; snout moderate, obtusely acuminate ; body 

 moderately elongate. Frontonasal large, square, a little broader 

 than long ; a pair of small praefrontals, forming a suture ; one 

 frontal; a pair of fronto-parietals ; a pair of large parietal s 

 separated by an equally long, narrower interparietal ; a pair of small 

 occipitals ; four supraoculars ; a loreal and a freno-orbital ; lower 

 eyelid with a large transparent disk composed of two scales ; 

 a chain of small suborbitals ; 6 upper and 6 lower labials ; chin- 

 shields very large, one azygos and three pairs ; collar-shields 7, 

 elongate. Dorsal and lateral scales narrow, hexagonal, imbricate, 

 strongly keeled, passing gradually into the ventrals, which are 

 broader and smooth ; 34 scales round the middle of the body, 12 of 

 which are smooth, 29 from occiput to sacrum, 20 from collar-fold 

 to prgeaual region. Three prsanal shields, median narrower, about 

 three times as long as broad. Tail scaled like the body. Brown 

 above, Avith a yellowisb dorso-lateral streak ; whitish beneath. 



Total length .... 62 millim. Fore limb . . 7 millim. 



Head 7 „ Hind limb . . 6 „ 



Width of head . . 6 „ Tail 35 „ 



Body 20 „ 



A single specimen from Blumenau, Sta. Catharina, Brazil ; 

 received from Dr. F. Werner. 



Ltgosoita aignantjm. (Plate LVII. fig. 1.) 



Section Keneuxia. — Habit lacertiform ; the distance between the 

 end of the snout and the fore limb is contained once to once and 

 one third in the distance between axilla and groin. Snout rather 

 long, pointed. Lower eyelid scaly. Nasals widely separated, 

 entire ; no supranasal ; frontonasal much broader than long, 

 its anterior border convex and forming a broad suture with the 

 rostral ; praefrontals extensively in contact on the median line ; 

 frontal as long as the frontoparietals and parietals together, in 

 contact with the first, second, and third supraoculars ; five supra- 

 oculars, first largest, fifth small ; 9 or 10 supraciharies ; fronto- 

 parietals distinct, truncated anteriorly where they come into contact 

 with the third supraocular ; interparietal a little smaller than 

 frontoparietals ; parietals forming a suture behind the interparietal ; 

 a large temporal and a large nuchal ; three upper labials anterior 

 to the subocular. Ear-opening moderate, smaller than the eye- 

 opening, without projecting lobules. 32 to 36 scales round the 

 middle of the body, all smooth or dorsals faintly tricarinate ; dorsals 

 largest, laterals smallest. Praeanal scales not enlarged. The 

 adpressed hind limb reaches the shoulder or halfway between 

 the shoulder and the ear. Digits slender, strongly compresed 

 distally; 40 to 42 smooth lamellae under the fourth toe. Tail 



Peoo. Zool. Soc— 1898, No. LXI. 61 



