BY 
JOHN EDWARD GRAY, F. R. S. &c. 
Emys ORNATA, t. 29. f. 2. Gray's Syn. Kept., 30. — Griffith, Aniin. Kinyd. 
The shell oblong-, longitudinal, rugose, olive; costal and marginal shields, with a central black 
spot and dark-edged pale rings ; vertebral plates irregularly ringed ; the first urceolate, second and 
third long, hexagonal ; beneath pale yellow, varied with two dark-edged pale lines in the centre, 
a double dark-edged pale line the whole length of the sterno-costal suture, and a series of eyed spots 
on the sutures of the marginal plates. 
In the young the shields are fine green, with a central spot and some yellow and two bright 
orange rings on the costal shields. 
Head yellow lined, with an interrupted orange streak on each side the occiput, and a forked one 
on the side of the throat. 
Inhab. North America, Mazatlan. — A. Collif., Esq. 
Amblyrhynchus subcristatus. Gray, Zool. Misc. 6. 
Head with unequal short broad pyramidical scales. Back and tail with a series of rather larger, 
short, broad scales, and a crest of seven or eight large short conical processes on the back of the neck. 
Scales short, conical, blunt, smaller on the neck and larger on the tail and limbs. Length twenty- 
one inches. 
Inhab. Galapagos. Found in immense numbers on the small black lava rock, ten or twelve yards 
from the beach. They swim well, and are black when alive. 
This species is very different from A . cristatus , which has a long dorsal crest, and long, triangular, 
conical, acute scales. 
Iguana tuberculata. 
The J. cccrulea , (Seba. 1. t . 95. f . 2.) is only a young specimen of this species. 
Inhab. Brazil. 
Iguana delicatissima, Laur. 
Ig. nudicollis, Guv. 
Inhab. Brazil. The Baron Cuvier has made a mistake in referring the Amblyrhynchus cristatus 
of Mr. Bell to this species, to which it has not the least affinity. 
