128 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



Boulenger'* regards this species as closely allied to R. tigerina, 

 differing in smaller size, half-webbed toes, slight development of the 

 fringe on the fifth toe and usually in the presence of a small outer 

 metatarsal tubercle. One of the chief differences I fuid, however, is 

 in the situation of the vomerine teeth. In R. tigerina they are ante- 

 rior, approximated very closely to the choanse, while in R. limnocharis 

 they are posterior and c^uite distant from the choanne, their distance 

 from the latter being twice as great as their distance from each other. 



Description (figs. \Q1 -Hi)). —Adult female; U.S.N.M. No. 31798; 

 Onomichi, Prov. Aki, Hondo; June 4, 1903; Dr. H. M. Smith, col- 

 lector. Vomerine teeth in two oblique groups, the anterior border 

 of which is on a lino with the posterior border of the choanae, their 

 distance from the latter twice as great as their distance from each 

 other posteriorly ; nostrils a little nearer the tip of .the snout than the 

 eyes; interorbital space about two-thirds the width of upper eyelid; 

 snout convex in cross-section, canthus rostralis rounded ; tympanum 



108 109 * 110 



F:GS. 107-110.— RaNA LIMNOCHARIS. NAT. SIZE. 107, TOP OF HEAD; 108, SIDE OF HEAD; U)„, UNDi_R;IDE 

 OF hand; no, UNDERSIDE OF FOOT. No. 36501, U.S.N.M. 



circular about one-half the diameter of the eye, its distance from the 

 latter more than half of its own diameter; fingers slightly tapering, 

 rounded, first extending much beyond second, and even beyond 

 fourth; a small smooth swelling at base of first finger; web between 

 toes deeply excised to the middle of the basal phalanx of the fourth 

 toe; inner metatarsal tubercle strong, oval, longer than one-half the 

 first toe; a strong conical outer metatarsal tubercle; a narrow dermal 

 fold along the outer side of fifth toe; a fold from inner metatarsal 

 tubercle halfway up the tarsus; tibio-tarsal articulations reach the 

 tympanum when hind legs are stretched forward, and only touch, 

 without overlapping when legs are bent at right angles to axis of body ; 

 skin above finely shagreened, with numerous narrow, elongated 

 glandular ridges which become shorter on the sides; no dorso-lateral 

 fold; a deep crease on the chest in fi'ont of each arm joining another 

 crease which runs from axilla to axilla across the chest ; skin under- 



a Oat. Batr. Sal. Brit. Mus., p. 28, and Fauna Brit. India, Rept., p. 450. 



