120 IGUANIDE, 
3. Enyalius iheringii, (Prare VII.) 
Enyalius iheringii, Bouleng. Ann. § Mag. N. H. (5) 1885, xv. p. 192. 
Distinguished from Z. catenatus in the following points :—Nostril 
nearly equally distant from the orbit and the tip of the snout. The 
scales on the vertebral region relatively larger, subrhomboidal, flat, 
distinctly keeled. Limbs shorter ; tibia shorter than the head ; the 
adpressed hind limb reaches the anterior border of the orbit in the 
male, the angle of the mouth in the female. Purplish-brown above, 
the male uniform, the female with an alternating series of black 
spots on the vertebral region, and on each side from nape to base of 
tail, a broad yellow band; lower surfaces brownish or purplish. 
g: 2. 
Total length .... 292 297 millim. 
Head) a evec ccs sies 25 26 4, 
Width of head .. 18 20 ,, 
Body .......... 67 (ee 
Fore limb ...... 50 50, 
Hind limb...... 80 6. » 
Tails sa and we'cenn 200 200 ~~, 
Southern Brazil. 
ab. SQ. Rio Grande do Sul. Dr. H. v. Thering [C.]. 
(Types. ) 
4, Enyalius cerulescens. 
Enyalius ceerulescens, Cope, Journ. Ac. Philad, (2) viii. 1876, p. 169. 
“ A dentellated nuchal crest, a vertebral band of linear scales ; 
no caudal crest; tail subround in section. Head wide, the muzzle 
parabolic, its entire surface, including the supraorbital region, covered 
with equal, acutely tubercular scales. Three rows intervene between 
the superciliary rows ; occipital scarcely distinct. Nostril pierced 
in a small round shield, nearer orbit than end of muzzle. Loreal 
region very short, with ten scales in a vertical line. Supraocular 
scales eighteen, counting to nostril. Labials 11-11; a short series 
of distinct, smooth infralabials. Auricular opening large. Dorsal 
scales very small, keeled, in transverse rows; abdominal scales 
larger, in cross series, interrupted on the middle line, keeled. The 
hind leg and wrist extend to front of orbit. Colour black, with 
numerous indistinct blue cross bands. Limbs, especially the fore- 
arm, and the sides of the neck, dark blue. Lower surfaces white, 
except throat and chin, which are blackish-blue.” 
Total length .......... 185 millim. 
Length to vent ........ G2. 
Wi “UD REE Seyler a aeeis 18 
Amazons, Peru ? 
