420 Miscellaneous. 
other only by a single row of scales; and the arch is filled up to the 
supraorbital margin by three or four rows of scales, which decrease 
in size from within outwards. There are on each side nine supra- 
labial shields, followed immediately by a second row of scarcely 
smaller shields. The scales of the temporal region are of the same 
size as those of the fore part of the head; and a few somewhat larger 
ones show, like the latter, a short point in the middle. The occipital 
region terminates in two short spines converging as in Lyriocephalus. 
The eyelids are entirely covered with small granular scales; it is 
only on the margins of the eyelids that they appear to be smooth ; 
and on the upper eyelid there is a row of from three to five rather 
larger flat scales. The region of the chin and throat is covered with 
slightly keeled scales, lying in rows parallel to the infralabial shields, 
and gradually diminishing in size towards the median line. In the 
upper jaw there is a short one-pointed median tooth, followed upon 
each side by two equally short ones, then a longer one, and then 
thirteen three-pointed molars ; in the lower jaw the median tooth is 
wanting, and on each side there are two one-pointed and fourteen 
three-pointed teeth. The neck, body, and tail are compressed, and 
the latter, in the two specimens described, is bent downwards (pre- 
hensile?). The back and the sides of the neck, trunk, and tail are 
covered with large imbricated scales, which are particularly large in 
the middle of the sides of the body; the scales are smallest on the 
under side of the neck, where there is an inconspicuous gular sac in 
the smaller of the two specimens, and on the breast; but these are 
keeled like the ventral scales, which are about one-half larger, On 
the back of the neck three or four long pointed scales form a crest, 
which is continued by similar but isolated scales down to the sacral 
region. The tail has no trace of a dorsal crest, but presents two in- 
ferior keels as in Ceratophora. The extremities, which appear to be 
shorter than in the allied genera, are covered, both on their upper and 
under sides, with large scales, but are strikingly distinguished from 
those of the allied genera by having the scales of all the foot-soles 
extremely small, and the soles of the fingers and toes very slightly, 
if at all, keeled, in accordance with the small size of the scales. 
The colour is brown (blue on the spots deprived of scales) ; from 
the point of the muzzle a yellowish band runs along the upper lip * 
to the shoulder, where it suddenly becomes broader ; an elongated 
spot behind each eye, a large spot on the nape of the neck, in front 
of the crest, a large triangular spot with its point towards the back 
close behind the anterior extremities, and some broad, somewhat in- 
distinct, transverse bands on the tail are yellow. The throat also is 
yellow, but marked on each side with irregular bands running 
obliquely from the margin of the lower lip. 
Total length 0°136, head 0°018, tail 0°075, anterior limb 0°023, 
posterior limb 0°027; width of the head 0°008 metre. The two 
specimens were collected in Ceylon by M. Nietner.—Monatsbericht 
der Akad. der Wiss. zu Berlin, December 1861. 
