HERPETOLOGY OF JAPAN. 121 



Habitat. — Originally described from two specimens collected at 

 Kazakevitch,not far from Khabarovka, a little above the junction of 

 the Ussuri River with the Amur, this species has since been recorded 

 from Lake Khanka and from Chemulpo, Korea. In the IIaml)urg 

 Museum there are two sjDecimens from Nikolayevsk, Amurland, col- 

 lected by Dieckmann in 1894 (Nos. 873, 875). 



Whether the grown specimens which Boettger (Ber. Senckenberg. 

 Naturf. Ges., 1894, pp. 146-147) records from Chinhai, near Ningpo, 

 China, under the name Rana amurensis really belong here is rather 

 doubtful, as he himself does not seem to be quite satisfied with their 

 identity. 



Nikolski has recently (1905) identified seven specimens in the St. 

 Petersburg Museum collected at Lake Kuku-Nor, northeastern Tibet, 

 by Przevalski and Grum-Grzymailo as belonging to this species. 



List of specimens of Rana amurensis. 



a Nine .specimens. 



RANA IJIM/E" Stejneger. 



1901. Biiergeria ijimse. Stejneger, Proc. Biol. Soc. Wa.shington, XIV, Dec. ]2, 

 1901, p. 190 (type-locality, Okinawa shima; type, Sci. Coll. Mus., Tokyo, 



No. 19 (911)). 



The outward conformation of the terminal digital joint of this 

 species led me to refer it to Polypedates (or Buergeria) . I have since 

 examined more closely into the matter and can find no interpolated 

 bone, so that its proper place seems to be in the genus Rana. 



The exact nature of the dorso-lateral gland in the unique type 

 specimen is doubtful. The specimen is somewhat soft and the light- 

 colored dorso-lateral lines appear to be glandular and somewhat 

 raised, but whether we have to do with a continuous fold or only a 

 series of longitudinal glands is not certain, although the former con- 

 dition is more probable. 



Description. — Adult. — Science College Museum, Tokyo, No. 19 (914) ; 

 Tanebimura, Okinawa shima, Riu Kiu (figs. 99-103). Vomerine teeth 

 in two slightly oblique series on a line through the posterior border 

 of the choanse and about equidistant from the latter and from each 

 other; tongue without free, conical papilla; snout somewhat pro- 

 jecting, the nostrils much nearer the tip of the snout than the ej^es 

 and nearly vertical over the tip of the mandible; interorbital space 



o Named in honor of Dr. Isao Ijima, professor of zoology in the Imperial University, 

 Tokyo. 



