302 SAURIA. 



The colors, as preserved in alcohol, are : deep hrown markings, upon 

 a light brown ground. A sketch made from life, in July, 1839, 

 exhibits an olive-green ground, a streak of which may be traced along 

 the middle of the back. The head, the body, and the limbs are vari- 

 ously mottled with black: in sinuous lines on the head; simulating 

 transverse bands, posteriorly tipped or edged with white, along the 

 back ; in longitudinal broken-up streaks on the sides of the head and 

 lateral region of the body ; in transverse bars upon the limbs ; and, in 

 obsolete half rings along the tail. A conspicuous black streak is 

 observed from the posterior rim of the orbit to the upper edge of the 

 auricular aperture. The labial plates are dotted with white, as also 

 the upper portion of the eyelid. White dots seem likewise to exist 

 on the sides of the body. Beneath, the hue is lighter and unicolor. 



Loc. — Found under stones, on the Amancaes Mountains, Peru. 



Plate XXV, fig, 25, represents Discodactylus pliacopliorus, size of life. 



Pig. 26, is an upper view of the head; 



Fig. 27, a profile; and. 



Fig. 28, an under view of the same region. 



Fig. 29, is the left hand, from above ; 



Fig. 30, the same hand, from beneath. 



Fig. 31, a group of dorsal granules and tubercles ; 



Fig. 32, a group of abdominal scales. 



Figs. 26-32, are somewhat magnified. 



Genus PHYLLURUS, Cuv. 



Gen. Char. — Back and tail granular, with scattered, larger tubercles; 

 belly covered with very small scales. No preanal or femoral pores. 

 Sides with a slight fold of the skin. A few small, internasal plates. 

 No mental shields. Limbs long and slender. Fingers and toes 

 slender, unequal, subcircular, compressed, all clawed, with bent 

 joints, and cross-plates beneath. Tail broad, depressed, contracted 

 at the base, tapering towards the tip. 



