93 BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



Dimensions. 



mm. 



Total length, tip of snout to vent 60 



Width of head 22 



Length of fore leg 34 



Length of hind leg, tip of longest toe to vent 92 



Length of tibia 25 



Diameter of tympanum 5 



Length of inner metatarsal tubercle 5 



The adnlt,iemale (U.S.N.M. No. 23576) lacks the vocal sacs and the 

 swollen pad at the base of the first finger, but agrees in other respects 

 closely with the description of the male given above. 



Variation. — My September specimens from Yokohama are all 

 essentially like the ones described above. The specimens collected by 

 Doctor Smith in Shikokii on May 11, as well as Owston's from Mount 

 Fuji, also collected in May, differ chiefly in coloration, the black pig- 

 ment being much more concentrated, the pale areas consequently 

 lighter, and the whole appearance brighter and with greater contrasts. 

 Thus the pale median dorsal line is greatly widened and the ground 

 color between it and the dorso-lateral fokls so darkened as to entirely 

 obscure the dorsal spots; a black line runs from tip of snout through 

 nostril and eye bending down sharply behind the tympanum ; the dark 

 blotches on the hind legs form distinct and strongly contrasted cross- 

 bars. With the elongation of the blackish coloration on the back 

 there is associated a distinct lengthening of the dorsal glandular folds 

 so that they run together into long irregular ridges. Jouy's speci- 

 mens from near Seoul, wliich were taken in June, are very much like 

 the ones from Shikoku, and so are Hallo well's types of R. marmorata. 

 The difference is evidently seasonal. 



Habitat. — Widely distributed in eastern Asia from Vladivostok 

 (Hamburg Mus., No. 871, collected by Dieckmann) in the North to 

 Bangkok, Siam (Brit. Mus.), in the South. Maack collected it on the 

 Amur and Ussuri rivers and Radde in the Khingan Mountains. It 

 is recorded from numerous localities in Cliina, such as Peking (Moel- 

 lendorff and Lataste); Shanghai, Kiukiang, Chapu, Hankow (Boett- 

 ger); Chefu, Chusan, Ningpo (Boulenger) ; Ordos (Przewalski). There 

 are specimens in British Museum from Broughton Bay and Gensan, 

 Korea; in the Philadelpliia Academy from Chemidpo (No. 15256), 

 and others in the U. S. National Museum from Seoul and Fusan. 

 Stone records it from the Khingan Mountains and Lama-mio in east- 

 ern Mongolia. 



On the map in Boulenger's Tailless Batrachia of Europe (at p. 263), 

 showing the distribution of the Bana esculenta group, the present 

 species is also indicated as inhabiting Formosa, though I am unable 

 to state upon what evidence this is done. 



In Japan proper B. nigromacuJata is recorded from the provinces 

 of Suwo and Mino and on the island of Awaji (Okada); from Naga- 



