HERPETOLOGY OP JAPAN. 



117 



length from snout to vent; inner metatarsal tubercle oval, less than 

 one-half its distance from tip of irmer toe; first finger extending 

 beyond second; tibia sliorter than fore limb; tympanum about one- 

 lialf the diameter of eye, from which it is separated by about one-half 

 its own diameter; distance between nostrils considerably greater 

 than interorbital width; webs between toes deeply excised, three 

 terminal phalanges of fourth toe being free. 



Type.— U.S. ^M. No. 17519; Tsushima; May, 1885; P. L. Jouy, 

 collector. 



Habitat. — Tsushima, Japan. 



This new species is probably nearest related to Rana amurensis. 

 It shares with it the short, rounded snout, and the deeply excised webs, 

 but the inner metatarsal tu])ercle is considerably stronger and larger. 



95 



<^^ 



Figs. 94-98.— Rana tsushimensis. IJ X nat. size. 94, top of head; 95, side of head: 96, open 

 mouth; 97, UNDERSIDE OF HAND; 98, underside of foot. No. 17519, U.S.N.M. 



In this respect it agrees with R. fem/poraria, but has more deeply 

 excised webs, narrower interorbital space, narrower dorso-lateral 

 folds, and slightly longer legs, being on the whole of slenderer build. 

 From R. japonica it differs by its short, rounded snout and its much 

 shorter hind foot. The vomerine teeth are decidedly further back 

 than in R. temporaria and japonica though not quite so far as in 

 R. amurensis. 



Description of type-specimen (figs. 94-98). — Youierine teeth in 

 two obli(jue groups their anterior border on a line with the posterior 

 border of the choanaB; snout short, the distance from orbit to tip of 

 snout equals the widtli between the black stripes at anterior border of 

 orbit; nostrils half-way between eye and tip of snout, their mutual 



