HERPETOLOGY OF JAPAN. 85 



A single specimen in the United States National Aluseum (No. 21211, 

 Figs. 68-70), collected by Jouy in Korea in 1883, probably in Seoul, has 

 a somewhat larger inner metatarsal tubercle than the other specimens 

 from Korea and Japan, and while the snout is possibly a trifle shorter^ 

 the hind legs are not short, the tibio-tarsal articulation reaching the 

 front of the eye; finally, the ventral granulation is exactly as in the 

 typical Hyla japonica. At first I thought that the hind foot of this 

 individual might afl^ord a good character, it being considerably larger 

 than in most of my Japanese specimens, but one collected by myself at 

 Yokohama, in 1896, is so nearly like it that I do not venture to sepa- 

 rate them. 



■ Altogether I am not assured of the distinctness of H. stepheni, my 

 faith in it having been considerably^ shaken by the last-mentioned 

 specimen (U.S.N.M. No. 23542, figs. 62-67). However, having been 

 favorably impressed by the examination of the Ussuri specimens, 

 and not now having an opportunity to reexamine them in connection 

 with my own material, I do not feel warranted in disturbing the status 

 given them by Boulenger. 



Nikolski, in 1905, has referred the tree-toads in the St. Petersburg 

 Museum from Yezo, collected by Albrecht in 1865 and by Maximo- 

 vitch, to H. stepheni, apparently as distinct from the tree- toads of 

 southern Japan. I have not been able to accept this view, as I have 

 been unable to discover any tangible difference between the Hylas 

 on both sides of Tsugaru Strait, but Nikolski' s action goes to show 

 how unsatisfactory the whole question is as yet. Much more mate- 

 rial will be necessary before it can be settled. 



There being no undoubted specimen of this form in our museum, 

 I reproduce herewith Boulenger's original description, and his meas- 

 urements of the two Ussuri specimens. 



Original description of type-speciinen. — Brit. Mus. No. 89. 11.8.5; Port 

 Hamilton, Korea; G. Stephen, collector. — Near H. arhorea. Tongue 

 subcircular, slightly nicked, and free behind; vomerine teeth in two 

 slightly oblicjue series between the choanse; head a little larger than 

 that of H. arhorea, broader than long; snout rounded, shorter than the 

 diameter of the orbit; canthus rostralis distinct; loreal region 

 slightly concave; interorbital space as broad as the upper eyelid; 

 tympanum distinct, half the diameter of the eye; fingers with 

 a short web at the base; no projecting rudiment of pollex; toes 

 hardly two-thirds webbed; disks a little smaller than the tympanum; 

 subarticular tubercles moderate; inner inetatarsal tubercle large and 

 very prominent, oval, about two-thirds the length of the inner toe; 

 a fold along the inner edge of the tarsus; the tibio-tarsal articulation 

 reaches the tympanum; tibia not half the length of the head and 

 body; skin smooth above; lower surfaces, throat of male included, 

 granular. Color varying from grayish or brownish to green, with 



