1868.] DR. A. GUNTHER ON NEW BATRACHIANS. 48.5 



with a single tubercle ; the interdigital web is rather deeply eniar- 

 ginate, scarce!}^ 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 milliras. long, the hind 

 limb being 36 miUims. 



Megalixalus, g. n. Polypedatid. 



Vomerine teeth none. Fingers and toes webbed; none of the 

 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 miUims. 



PoLYPEDATES NANUS. (Plate XXXIX. fig. 3.) 



Similar in habit to Pobjpedates macuJatus. 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 dai'k 

 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. 



We have received three examples from Southern Ceylon ; the 

 Pkoc. Zool. Soc— ISOK, No. XXXIL 



