308 SAURIA. 



The ground color is of a deep brown, maculated with black, so as to 

 simulate transverse, undulating, dark bands over the back and limbs, 

 longitudinal streaks over the head and neck, and half rings over the 

 tail : the posterior margin of these dark bands or patches being light- 

 lined. The commissures of the labial plates are whitish, as well as the 

 upper aspect of the phalanges. Beneath, the color is uniformly brown. 



Log. — Feejee and Navigator Islands. 



Plate XXIV, fig. 25, represents Heteronota pelagica, size of life. 



Fig. 26, is the head seen from above ; 



Fig. 27, its profile; and. 



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



Fig. 29, the left hand, from above; 



Fig. 30, the same hand, from below. 



Fig. 31, a group of dorsal granules. 



Fig. 32, a group of abdominal scales. 



Figs. 26-32, are somewhat magnified. 



Genus NAULTlNUS, Gray. 



Gen. Char. — Body of moderate length, stoutish, and depressed. Back 

 granular or subgranular ; abdomen protected by very small and 

 smooth scales. Head depressed, rather broad posteriorly, and granu- 

 lar, subconical anteriorly, and covered with small, roundish, or sub- 

 hexagonal plates. Pupil vertical. Nostrils lateral, subterminal. 

 Auricular aperture moderate, simple. Labial plates diminishing 

 posteriorly, not extending to the angle of the mouth. No mental 

 shields. Chin and throat minutely granular. Limbs moderately 

 developed. Fingers and toes five, unequal, tapering, clawed, de- 

 pressed, except the last joint, which is compressed; protected beneath 

 by transverse and simple plates. Tail well developed, subcylindri- 

 cal, depressed, posteriorly tapering, superiorly granular, scaly beneath, 

 provided, on each side of its base, with two or four spine-like scales. 

 Femoral pores disposed upon one or two series ; interfemoral pores in 

 patches or ogees. 



