granules are grouped into a central band, which expands on the chest into a circular
granular area, on a line between the angle of the mouth and the shoulders. Prom
the vent to the heel equals the length of the body, or slightly more or less.
Length tip of snout to vent . . . 2#‘73 2'-70 2'-60 2' 05 •
„ vent to heel.............................. 2"-7:5 2*'60 . 2*'-85 2''-30
,, heel to tip of fourth toe . . 2''20 2,-05 2#,10 l^SO
These measurements would seem to indicate that the limbs are proportionally
larger in the young than in. the adult.
The upper surface and sides are dark greenish-brown, marked with large round
blackish-brown spots with ragged edges, and sometimes with light centres. Broad
blackish-brown interrupted bars occur on the limbs and feet, and black spots on the
upper and lower jaws. The under parts are yellow with faint brown spots on the
fore part of the belly and throat, while in others those parts are immaculate. In
the young, the markings are finer, and the bars on the legs more numerous, while
the under surface is in no way granular, as in the adult.
This species is allied to P . ma/rmoratus, but distinguished from it by its sm a l l
disks and more emarginate interdactyle membrane. This frog, in the tendency
which it exhibits to form a glandular fold along the side, serves to link together the
two genera JELylara/na and Polypedates.
This species I only met with at an elevation of 4,500 feet in the valley of
Hotha.
Genus I x a l u s , Bum. & Bib.
I x a l u s l a t e r a l i s , Andr., Plate LXXVIII. *
Ixalus lateralis, Anderson, Journ. As. Soc., Bengal, vol. xl, 1871, p. 29.
These specimens were found under stones in a partially dried water-course on
the left bank of the Irawady, about 30 miles below Bham6. They agree in all their
essential particulars with the type, the habitat of which was unknown, but which,
from the circumstance that it is a specimen in the Calcutta Museum, we may conclude
was obtained from some portion of the surrounding region, as the collection of
frogs in that Institution is exclusively Indian and Malayan. The only points in
which I can detect that these Burmese specimens differ from the type are, that in
some, the back is slightly tubercular; in some, there is a large, triangular, dusky
olive spot, the base of which extendi across, between and upon the eyelids, while its
apex is directed backwards; in others, there are two or more irregular, similarly
coloured spots on the back; these and the interorbital spot being narrowly margined
with yellowish.
The web of the foot is prolonged along the toes as a kind of fringe or mem-
branous border. This character had become so obscure in the type, from its being
preserved in spirit, that it was overlooked.
In life, the colours are olive above, with a tinge of greenish, and the under
parts pale yellowish, marbled with brown.
I x a l u s e a k h i e n e n s i s , n. sp., Plate LXXVIII.
Head rather broad; snout short and moderately pointed. The canthus rostralis
rounded; the area before the eye rather deeply concave. The tympanum less than
one-half the size of the eye. Limbs moderately elongated, and the disks rather large.
The toes fully webbed, with the exception of the fourth toe, in which the membrane
does not reach its extremity. The fore limb when laid forwards has the wrist nearly
reaching the snout, and the hind limb has the heel slightly beyond the snout. The
upper surface of the body and the sides of the head are dark olive black, paling on
the upper surface of the limbs to olive brown, obscurely transversely banded with
blackish-brown. Chin, throat, and chest and sides of body marbled with brown and
whitish. The belly yellowish, and obscurely brown spotted. The under surface of
the limbs yellowish, and finely brown speckled; finger and toes yellowish and brown
banded, the disks being blackish.
Inches.
Length of body snout to v e n t .................................................... 093
„ of fore limb : . . . . . . . . . 0#57
„ of hind limb . . . . . .’ . . , 1*62
In fields, in the Nampoung valley, 1,000 feet.
I x a l u s t u b e r c u l a t u s , n. sp., Plate LXXVIII.
Snout short and rather broad and very slightly concave before the eyes.
Canthus rostralis feebly developed and rounded. Nostril but little below the canthus
rostralis, small, but with a rather swollen margin, and much nearer the end of the
snout than the eye, which is rather large, and the eyelids finely tubercular. The
tympanum is about oneTfourth the dimensions of the eye. The fore limb when laid
forwards has the wrist, and the hind limb the heel, at the tip of the snout. The
disks of the fingers are considerably dilated and larger than those on the toes. The
latter are very feebly webbed, the web reaching only to the end of the first phalanx.
Small scattered isolated tubercles on the upper surface and on the sides of the body,
the belly and the inner aspect of the upper third of the thighs being finely granular.
General colour of the upper parts is uniform.dark olive. All the small tubercles,
as a rule, white. In some specimens, a transverse pale yellowish band between the
eyes and two similar bands behind them. A large black irregular spot on the groin,
extending halfway up the side with two yellow spots, the thigh broadly but
obscurely banded with dark brown and yellow, one broad band across the middle of
the thigh and lower leg. The humeral portion of the arm brownish, marbled with
yellowish; elbow yellow; limb below marked with dark olive and paler yellowish
spotted. Sides of snout and upper lip marked with yellowish and olive, and lower
lip and chin with brown and yellow. Chest and belly yellowish, but this colour is