146 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



the first small, all slightly rounded anteriorly; toes nearly entirely 

 webbed; disks large, but smaller than those of fingers, gradually 

 decreasing in size from fourth toe; a pear-shaped inner metatarsal 

 tubercle, as large as one-half the first toe, rounded; a large, but not 

 prominent outer one ; tibio-tarsal articulations reach posterior border 

 of eye, and do not meet when hind legs are placed vertical to the axis 

 of the body; skin above very finely shagreened; no dorso-lateral 

 folds; a strong fold from posterior border of e3"e over tympanum to 

 shoulder; skin on underside granulated, the granulation increasing 

 in coarseness from the throat backward. Color above in life green, in 

 alcohol dull marine blue; beneath yellowish, as are also the upper 

 surface of the two inner fingers, the three inner toes, and tlisks of all 

 the digits; a few dusky spots on posterior aspect of femur; no cross- 

 bars on legs. 



IHinensions. 



mm. 



Total length, tip of snout to vent 49 



AN'idth of head 18 



Interorbital space 6 



Upper eyelid 3. 5 



Diameter of eye 5 



Diameter of tympanum 3.3 



Diameter of largest finger dii^k 3 



Fore It^g- ; 29 



Hinc[,^Ieg, vent to tip of largest toe 68 



Tibia 20 



Variation. — There is apparently very little external difference 

 between the sexes. The male is said to have an internal vocal sac, 

 and No. 34373, a May specimen, has the throat suffused with dark 

 gray, which the others collected in the same locality and at the same 

 time do not. 



There is some variation in the length of the vomerine series, so that 

 the internal is not often so great as in the specimen, described. The 

 '•^tympanum is often smaller and the declivity of the snout is not always 

 eqiially great. 



'Habitat. — This species is apparently confined to Japan. Thus far 

 it is only recorded from Kiusiu (Miyazaki, U. S. Nat. Mus.) and Hondo 

 as far north as 37° N. L. (Aizu, prov. Iwashiro, according to Okada). 

 f t ^s not uncommon in the woods near Yokohama (von Martens, 

 Boetf|;er, Stejneger) and Tokyo (Hilgendorf, Okada). Hilgendorf 

 also records it from the Tsukuba Mountain, northeast of Tokyo in the 

 province of Hitatchi, while Boettger has it from the mountains near 

 Hakone. We also have four specimens from Mount Fuji, and in the 

 Stockholm Museum therejis one specimen collected by Dr. O. Nord- 

 quist at Enoshima. It is not found in Yezo, and is replaced in the 

 Riu Kius by the next form. 



