IXALUS VARIABILIS. 433 



which I have formerly referred to Ixahis mirifasciatus, are young, and probably Polypedates 

 microtympanmn. That species of localiis is not found in Ceylon. I am acquainted with the 

 following species from British India: — 



No fold along the tarsus ; hinder side of the femur coloured ; web extending to 



the outer phalanx of the third and fifth toes /. variabilis, p. 433. 



No fold along the tarsus ; hinder side of the femur coloured ; web not extending 



to the outer phalanx of the third and fifth toes /. temporalis, p. 434. 



A fold along the tarsus ; hinder side of the femur not coloured /. femoralis, p. 434. 



Two other species have been referred to this genus, which I have hitherto failed to 

 recognize : — 



1. Ixalus leucorhinus, Martens, in Nomencl. Rept. Mus. Zool. Berol. 1856, p. 36. Toes not quite half- 

 webbed. YelloAvish brown with darker cross bands ; thighs cross banded. A large six-sided white spot 

 on the forehead ; a band runs from the snout to the hip. Length of the body | inch, of hind limb 

 1^ inch. Ceylon. 



2. Polypedates ij:) schniardana, Kelaart, Prodr. Faun. Zeyl. ii. p. 22. "Above brownish grey; beneath 

 white, posterior half of abdomen marbled with black. Eyebrows armed with spines. Back and sides 

 tuberculated. Limbs studded with tubercular sharp-pointed spines. About 1 ^ inch long. From Adam's 

 Peak. This novel form of Tree-frog has no resemblance to any other found in Ceylon or Southern India." 



This species has been identified by Prof. Peters with Ixalus pcecilopleurus, Martens, Nomencl. Rept. 

 Mus. Zool. Berol. p. 36; but when he at the same time (Sitzgsber. Acad. Wiss. Berl. 1860, p. 186) says 

 that possibly Ixalus variabilis, Gthr., var. B., may also be identical with Kelaart's species, I must reply 

 that not only not a single word of Kelaart's description justifies such an assumption, but that Polypedates (^) 

 schniardana must be a very well-marked species and very diSerent from Ixalus variabilis, which being 

 very common must have been known to Kelaart, although he appears to have confounded it with young 

 Polypedates. 



3. Ixalis{?) glandulosa, Jerdon, Journ. As. Soc. Beng. xxii. p. 532, from Southern India, is perfectly 

 unrecognizable. 



Ixalus variabilis. 



Ixalus variabilis, Giinth. Batrach. Sal. p. 74. pi. 4. figs. A & B. 



Snout short, as long as the eye, rather obtuse in front, with angular canthus rostralis. 

 Tympanum small, inconspicuous. Skin of the upper parts perfectly smooth. The length of 

 the body is somewhat more than the distance between vent and heel. No fold of the skin 

 along the tarsus ; metatarsus with a single tubercle ; the interdigital web extends to the 

 outer phalanx of the third and fifth toes ; disks of the fingers and toes rather broad. The 

 coloration is very variable, but the anterior and posterior sides of the thiglis are always 

 coloured and spotted. 



Var. a. Brownish- or greenish-olive above, whitish below ; sides and hind parts of the 

 thighs variegated with black and white. This variety is the most common. 



Var. (3. Greenish-olive above, with numerous large, irregular greyish-brown spots edged 

 with violet ; a cross band of the same colour between the eyes, and similar transverse bars on 

 the limbs ; lower parts whitish. 



3b: 



