430 BATRACHIA. 



POLYPEDATES MICROTYMPAKUM. 



Polypedates microtympanum, Giinth. Batrach. Sal. p. 77. pi. 6. fig. A. 



Habit rather stouter than in P. maculatus. Head rather short, with broad flat crown, 

 carved and angular canthus rostralis, and short rounded muzzle ; loreal region somewhat 

 grooved ; nostril round, lateral, rather prominent, just below the canthus rostralis, nearer the 

 end of the muzzle than the eye. Eye of moderate size ; tympanum small, oval, one-third the 

 width of eye. Limbs of moderate length ; second finger much longer than first, fourth much 

 longer than second, third rather longer than fourth; fingers with a very slight lateral 

 cutaneous fold, scarcely webbed ; subarticular tubercles very conspicuous ; disks moderately 

 developed ; fifth toe as much longer than third as the disk is broad ; toes half-webbed ; a 

 cutaneous fold reaching to the disks ; subarticular tubercles very conspicuous ; metatarsus 

 with a small tubercle. Skin of back nearly smooth, or with a few scattered small tubercles ; 

 skin of the side and of the under parts tubercular ; upper eyelids with some tubercles ; a 

 glandular cuned fold from the back edge of the eye, above the tympanum, to the arm-pit. 

 Choanae and eustachian tubes rather small ; a deep groove on each side of the palate ; 

 vomerine teeth small, in two very short oblique series between the choanse, with a large 

 interval between. Colour above either nearly uniform bluish grey or olive, with regular black 

 markings : a cross band between the eyes ; a broad band on each side of the back, with a 

 large interspace between, divergent in front and behind ; limbs with black points and large 

 cross bands ; a black streak beneath the canthus rostralis and along the glandular fold ; sides 

 black-spotted ; beneath yellowish, throat and chest finely dotted with black. Young speci- 

 mens from Southern Ceylon sometimes have the lower parts entirely brown. 



This species is peculiar to, and not uncommon in, Ceylon. An adult female measures 

 2^ inches, the hind limb being 3^ inches long. 



Polypedates pleurostictus. (Plate XXVI. fig. I.) 



Very similar to P. microtympanum, but with the fingers distinctly webbed. Head rather 

 short ; snout broad, with the canthus rostralis somewhat obtuse ; loreal region slightly concave. 

 Eye of moderate size ; tympanum small, very indistinct, not quite one-third of the width of 

 the eye. Limbs of moderate length ; fingers with a very distinct web at the base ; disks well 

 developed ; toes broadly webbed, the interdigital membrane extending to the disks of the 

 third and fifth toes. Metatarsus with a small tubercle. The length of the body equals the 

 distance between vent and heel. Skin of the back smooth, of the sides and of the belly finely 

 granular ; a curved glandular fold runs from the orbit, above the tympanum, towards the arm- 

 pit. The vomerine teeth are very small, and occupy two short convergent ridges, each of 

 which commences from the anterior angle of the choana. Upper parts greenish, with rather 

 irregular kidney-shaped dark spots edged with lighter, one of them on each superciliary 

 region ; sides of the trunk wdth reticulated black lines, the intervals between the lines being 

 yellow. Limbs with dark cross bars ; the hinder side of the thighs brown, with white dots. 



We have examined three specimens of this species, which are almost perfectly alike. 



