Eeptiua.] 
NATURAI. HISTORY, 
425 
1, Chlamydosaurus Kingii, (n. s.) 
C. corpore luteo, nigro, variegato ; squnmis earituitis ; pen*’ 
nula antice serrata ; cauda corpore duplo longiore, 
Chlamydosaurus Kingii, Gray MSS. 
Icon. Tab. A. Natural size. 
Inhabits Port Nelson, north-west coast of Australia. 
The colour yellowish-brown variegated with black: the 
head depressed, with the sides erect, leaving a blunt ridge 
on the upper part, in which the eyes are placed : the ridge 
over the eyes covered with larger scales than those over 
the head ; eyes rather small, with a fleshy ridge above them ; 
eye-lids covered with minute, and surrounded by a delicate 
serrated ridge of small upright scales : the lips surrounded by 
a row of oblong, four-sided scales, arranged lengthways, the 
front scale of the upper lip being the largest : the chin co- 
vered with narrow mid-ribbed scales, with a five-sided one in 
the centre, and several of larger size just over the front of the 
fork of the lower jaw : nostrils, surrounded by rather a large 
orbicular scale, situated nearly mid-way between the eye 
and the end of the upper jaw, the tubes pointing forwards : 
the side of the face has a very obscure ridge extending from 
the angle of the mouth to the under part of the ear : neck 
covered with small scales : frill arising from the hinder part 
of the head, just over the front of the ears, and attacked to 
the sides of the neck and extending down to the front part of 
the chest, supported above by a lunate cartilage arising 
from the hinder dorsal part of the ear, and in the centre by 
a bone, which extends about half its length : this bone ap- 
pears to be an elongation of the side fork of the bone of the 
tongue, but it could not be determined with certainty with- 
out injuring the specimen ; each frill has four plaits, which 
converge on the under part of the chin, and fold it up 
on the side, and a fifth where the two are united in the 
