gular light yellow spots, those near the centre of the back smallest; sides
superiorly the same colour as the back, inferiorly deep reddish orange and
partially barred by prolongations of the dark colour of the higher parts of the
sides; the sides of neck marked with three distinct dark liver-brown spots,
one directly behind the meatus externus. The space between rami of lower
jaw livid blue; the belly and under surface of extremities sienna-yellow
clouded with deep reddish-orange; under-surface of tail dull reddish-orange ;
upper surface of extremities light orange-brown. Eyes chesnut-brown.
(V a e . Plate XXV.)
C olou r .—(Male. Fig. A.)—The upper surface of the head light brownish-
orange shaded with umber-brown, the back dull yellowish brown finely variegated
with many longitudinal rows of small liver-brown spots ; the sides of
the body intermediate between orpiment-orange and tile-red, and variegated
here and there with short liver-brown streaks ; the sides of the head before
the eyes the same colour as the upper surface of the head ; sides of lower jaw
pale reddish orange shaded with umber-brown; temples deep reddish orange,
and the sides of the neck with two or more deep liver-brown blotches. Tail
dull yellowish brown irregularly mottled with umber-brown ; space between
rami of lower jaw livid blue; belly and under-surface of tail ochrey yellow
tinted with green; legs and toes pale reddish orange, the fore legs spotted
sparingly with light-brown, the hinder ones spotted or barred with umber-
brown. Eyes deep reddish brown.
Female, (fig. B.)—The upper surface of head and the temples a yellowish
hair-brown with the edges and centre of the scales lightest; back liver-brown
freely variegated with short longitudinal stripes of a colour intermediate
between oil-green and ochre-yellow; the sides of the lips and the body the
same colour as the spots of the back, and the sides of the latter is variegated
with several rows of dark umber-brown dots and some light umber-brown
blotches. The extremities externally coloured like the sides and freely mottled
with umber-brown spots most numerous towards the toes. Tail liver-
brown mottled with dull yellowish green; space between rami of lower jaw
livid blue; belly and under surface of tail ochrey yellow with a greenish
tinge. Eyes dull reddish brown.
(V a r :—Plate XXVI.)
C o lou r .— (Male. Fig. A.)—The middle and hinder parts of the head
superiorly, and the back a yellowish hair-brown, freckled with liver-brown,
the centre of each scale being of the latter colour ; the upper surface of the
head anteriorly oil-green. The sides of the lips and body a light yellowish
emerald-green, and the latter is partially barred with a number of narrow prolongations
of the dark colour of the back; the sides of the neck with two
dark liver-brown spots, the anterior one waved, the hinder one vertical. Tail
pale liver-brown, irregularly spotted with sulphur-yellow; belly livid greenish
yellow; legs and toes oil-green barred with liver-brown. Eyes deep reddish
brown.
Female and young.—(Figs. B. and C.)—The upper surface of head and back
pale umber-brown, the sides of the former finely edged with pale oil-green, and
the discs of plates finely dotted with the same colour; the back variegated with
a number of small irregular pale oil-green spots. Sides intermediate between
oil-green and ochre yellow, and marked with several longitudinal lines of
small liver-brown spots ; sides of head yellowish hair-brown. Tail oil-green
mottled with somewhat square umber-brown spots; extremities the same
colour as the sides and speckled with umber-brown spots. Belly straw yellow
with a greenish tinge. Eyes deep reddish brown.
F orm, &c.— Head rather depressed and subtriangular, its upper surface
posteriorly level, and anteriorly sloped towards the nose; its sides in front of
the eyes nearly perpendicular, behind them convex and bulged, particularly
posterior to the angles of the mouth; the hinder edge of the temples armed
with two or three compressed tubercular looking scales, which project outwards
and backward, and conceal more or less the external openings of the
ears. The forms of the plates and scales of the head vary a little in the
different varieties, and even in individuals of the same variety, as will be
seen on referring to Plate XXX,* The plates of the temples differ considerably
in size and configuration, being in some like scales, in others like
lengthened plates, and such variations are* even exhibited by specimens
of the same variety. The neck and body like the head is somewhat depressed,
and the latter bulges considerably on each side. The skin of the
neck, particularly the portions which cover its side is loose, and more or less
folded or deeply wrinkled, and between these wrinkles are situated the very
* Rig.'l, the upper surface of the head of specimen, figured Plate XXIV. 1 ; _ 1 a, the side of the head
of ditto. Rig. 2, the upper surface of the head of specimen figured Plate XXIV. 2;—2 a, the side of the
head of d i t t o 2 b, femoral pores of ditto. Pig. 3, the upper surface of the head of specimen figured
Plate XXV. A;—3 a, the side of head of ditto;—3 b, the femoral pores of ditto. Fig. 4, the upper surface
of the head of specimen figured Plate XXVI. A 4 a, the side of head of ditto;—lb , the femoral pores
Of ditto. •