152 BULLETIN 58^ UNITED STATES NATIONAL MUSEUM. 



smooth except lower belly and basal portion of posterior aspect of 

 femur granular. Color (in alcohol) above dull bro\\Tiish gray with 

 obscure dark spots which become sharply defined and blackish on 

 the sides and hind legs ; a chevron mark of dusky on the upper eyelids 

 and interorbital space, the convexity pointing backward, and two 

 longitudinal curved lines between the shoulders with their convexity 

 toward the median line; legs crossbarred and marbled with blackish; 

 ujDper posterior aspect of femur marbled with black; underside 

 whitish, lower lips and adjacent portions of throat, as w^ell as lower 

 portions of the thigh and the tibia, A\dth numerous small black spots. 



Dimensions. 



mm. 



Total length, tip of snout to vent 70 



Width of head 24 



Fore leg 42 



Hind leg, vent to tip of longest toe 115 



Tibia : 33 



The adult male is apparently much smaller, U.S.N.M. No. 31906, 

 same locality, date, and collector, measuring only 45 mm. in total 

 length. The hind legs are much longer, as the tibio-tarsal joint 

 reaches the nostril, and the tibia is slightly longer than half the total 

 length, viz. 23.5 mm. There is a large swelling at the base of the first 

 finger, with a pad of copulatory asperities, as in the Ranas, covering 

 the side of the metacarpal and the basal phalanx. There is also an 

 internal vocal sac with an opening in the mouth on either side of the 

 tongue. The coloration is essentially as in the female, only the dusky 

 spots on the throat are much smaller and much more numerous. 



Variation. — Our series is rather uniform, showing but little varia- 

 tion, except that there is a great deal of difference in the amount of 

 dark markings on the underside, the above descriptions representing 

 the maximum. 



Habitat. — None of the records thus far published, except Okada's 

 Catalogue, gives any definite localities for this strictly Japanese species. 

 The original types collected by Buerger have only "Japan" for habi- 

 tat, presumably southern Japan, or more strictly Kiusiu. However, 

 in the United States National Museum we have specimens from Aiiya- 

 zaki, in Kiusiu, collected by Rev. C. A. Clark, and from the province 

 of Iga, in Hondo, about 30 miles east of Osaka, through Professor 

 Ijima. Dr. T. Lenz, in 1896, also collected it in the same general 

 region, specimens from the provinces of Yamashiro, Setsu, and 

 Yamato, surroiniding Kioto and Osaka, being in the Hamburg 

 Museum (Nos. 1000, 1009, 1011). Osaka, besides recording it from 

 the provinces of Mino, Hida, and Yamashiro, mentions Hayakawa, 

 near Hakone, Chicliibu in Musaslii, and Yumoto and Chuzenji Lake, 

 at Nikko, as places where Buerger's tree-frog occurs. United States 



