1920.] G. A. B0U1.ENGER : Frogs of the Genus Rana. 165 



eyelid), and in the shorter web between the toes, reaching only the 

 end of the basal phalanx of the third and fifth toes. 



An examination of 5 specimens from Java proves this dis- 

 tinction to break down. 



[It is curious that all the specimens of this frog found in the 

 Malay Peninsula have been captured in or close to the large lime- 

 stone caves characteristic of many districts of that country. In 

 the Jalor caves I have seen individuals well inside the mouth of 

 the Goah Glap. N. A .] 



84* Rana varians» 



Raiia varians, Bouleng. Ann. and Mag. N.H. (6) XIV, 1894, p. 86, and 

 Proc. Zool. Soc. 1897, p. 231; BoQttg. Ab/i. Serzck. Ges. XXV ,' igoi, 

 p. 366, pi. XV, fig. 8. 



Rana moluccana, Boettg. Zool. Am. 1895, p. 132 ; Barbour, Mem. Mits. 

 Coiiip. Zool. XLIV, 1912, p. 66, fig., pi. V, fig. 12. 



Vomerine teeth in strong obUque series between the choanse 

 or extending beyond the level of their posterior borders, equally 

 distant from each other and from the latter. 



Head longer than broad, much depressed; snout rounded or 

 more or less pointed, projecting beyond the mouth, usually longer 

 than the eye ; canthus rostralis strong ; loreal region nearly verti- 

 cal, deeply concave ; nostril equidistant from the eye and from the 

 tip of the snout, or a little nearer the latter ; distance between the 

 nostrils equal to or greater than the interorbital width, which is 

 equal to or a little less than that of the upper eyelid ; tympanum 

 very distinct, f to ^^ the diameter of the eye, i^ to 4 times its 

 distance from the latter. 



Fingers long and slender, terminating in small discs which 

 are a little longer than broad, with the upper surface separated 

 from the lower by a horseshoe-shaped groove ; first finger longer 

 than the second, third as long as or longer than the snout ; sub- 

 articular tubercles large and very prominent. 



Hind limb very long and slender, the tibio-tarsal articulation 

 reaching beyond the tip of the snout, the heels strongly overlap- 

 ping when the limbs are folded at right angles to the body ; tibia 

 5 to 6 times as long as broad, i| to if times in length from snout 

 to vent, as long as or a little longer or a Httle shorter than the 

 fore limb, longer than the foot. Toes ending in small discs, same 

 as those of the fingers ; web reaching the discs of the third and 

 fifth, usually 2 phalanges of fourth free ; subarticular tubercles large 

 and prominent ; outer metatarsals separated nearly to the base ; 

 no tarsal fold ; inner metatarsal tubercle oval, |- to J the length of 

 the inner toe ; a small, round outer tubercle. 



Skin smooth or finely granulate above, with or without small 

 warts; a narrow but very prominent glandular dorso-lateral fold 

 from above the tympanum to the hip, its distance from its fellow, 

 on the back, 5 to 6| times in the length of head and body. I^ower 

 parts smooth, posterior part of thighs granulate. 



