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Show 1868.] DR. A. GUNTHER ON N E W BATRACHIANS. 485 with a single tubercle ; the interdigital web is rather deeply emarginate, scarcely extending to the outer phalanx of the third and fifth toes; disks of the fingers and toes small. Brownish olive above, indistinctly clouded with darker ; limbs with brown cross bands ; a black transverse triangular spot across the anal region. Throat and fore part of abdomen dotted with brown ; hinder part of abdomen and lower side of leg beautifully rose-coloured. A single example from the Nilgherries has been presented to the British Museum by Mr. Theobald ; it is 25 millims. long, the hind limb being 36 millims. MEGALIXALUS, g. n. POLYPEDATID. Vomerine teeth none. Fingers and toes webbed; none of tbe fingers opposed to the others. Tympanum small ; eustachian tubes and inner nostrils of moderate width ; tongue free and deeply notched behind. Pupil of the eye vertical. Apophyses of the sacral vertebra styliform. Three phalanges of the fifth toe free from the fourth. MEGALIXALUS INFRARUFUS. Head large, broad, depressed, snout longer than the eye, with the canthus rostralis angular, and the loreal region flat, sloping. Eye large, upper eyelid free and notched behind. Tympanum extremely small. Disks of the fingers and toes well developed ; outer fingers half-webbed; toes three-fourths webbed. Skin entirely smooth. Upper parts uniform green, lower rufous. Lips and upper eyelids with a white margin. The origin of the specimen is not known; it is 65 millims. long, the length of the hind limb being 96 millims. POLYPEDATES NANUS. (Plate XXXIX. fig. 3.) Similar in habit to Polypedates maculatus. Head broad, snout short, canthus rostralis angular, loreal region flattish. Eye large, tympanum very small and indistinct. The vomerine teeth stand in two oblique series between the choanse; in young examples (25 millims.), the teeth as well as the tooth-bearing ridges are absent; and these specimens may easily be mistaken for Ixalus. Upper parts with rather numerous very small tubercles ; the tubercular ridge between the eyes is crossed by a very fine longitudinal glandular fold running from the nose to the occiput. Young specimens nearly entirely smooth, limbs rather slender, the length of the body being equal to the distance between vent and heel. Disks large, fingers not webbed ; second finger much shorter than the fourth, which is a little shorter than the third. Toes one-third webbed ; third toe shorter than fifth. Tarsus without fold, metatarsus with a very small tubercle. Brownish or greyish olive, with symmetrical dark markings on the back ; sides and hind part of the thighs with brown spots; limbs with brown cross bands. Lower parts whitish, throat with small brown spots. W e have received three examples from Southern Ceylon ; the PROC. ZOOL. Soc-1868, No. XXXII. |