438 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxii. 



Np.machUus diwni Fowler, Proc. Acad. Nat. Sci., Phila. 1899, 1900, p. 181 



(Tan-lan-ho, near Dolon-iioor, tril). of Liao-ho). 

 Elixis coreanus Jordan and Starks, Proc. U. >S. Nat. Mus., XXVIII, 1905, p. 



201, fig. 7 (Gensan, Fusan). 



We have specimens from Dalai-nor Lake (No. 2477), Ulugiii River (in 

 Khinghan mountains), Khanka Lake (Ussuri liiver), Da-chu-ang- (trib- 

 utary of Sungari), Vladivostok (in a rivulet), numerous specimens in 

 Gensan (Korea, No. 13723). 



3. NEMACHEILUS BARBATULUS TONI (Dybowski.) 



Cohitis toni Dybowski, Verh. zool.-bot. Gesell. Wien, XIX, 1869, jj. 957, pi. 



XVIII, fig. 10 (system of Amur; Onon, Ingoda); Verb, zool.-bot. Gesell. 



Wien, XXIV, 1874, p. 392 (system of Baikal; Angara, Selenga, KossogolL. ). 

 ? Nemacliilus compressirostrls Warpachowski, Ann. Mus. Zool. Petersb., II, 1897, 



p. 270 (a lake in N. W. Mongolia, basin of Ob). 

 Nemachilus pechilienm Fowler, Proc. Acad. Nat. Sci. Phila., (1899) 1900, p. 181 



(Liao-ho). 

 Nemacliilus toni Ber(4, Ann. Mus. Zool. Petersb., V, 1900, p. 362, ]A. viii, fig. 10 



(Baikal; basin of Selenga). 

 Ortlirids oreas J OHDAS and Fowler, Proc. U. S. Nat. Mus., XXVI, 1903, p. 769, 



fig. 2 (Japan; Chitose in Iburi, Hokkaido). 

 NemacJieilu.9 harhatulus toni Berg, Trav. Section Troitkoz-Kiakhta See. Kuss. 



Geogr., VIII, No. 3, (1905) 1906 p. 66 (Kossogol Lake, Baikal Lake, basin 



of Amur, Sakhalin). 



The loach from East Asia differs very slightly from the common 

 N. harhatuhis from Europe and W. Siberia, as is proved in my above- 

 mentioned Russian paper, where measurements ma}' ])e found. The 

 genus OrtJirias fFordan and Fowler differs from NcinacJieHu..'^ van Has- 

 selt only in having the caudal tin truncate instead of forked. This 

 character is scarcely of generic value, as in some central Asiatic 

 jW'viacJieiJiis the caudal ffn in 3'oung specimens is emarginated, while 

 in adult ones it becomes truncate. We have specimens from the 

 Khanka Lake (No. 8485), Argun River (No. 3205), and mouth of 

 Amur (No. 13828), also numerous specimens from the Baikal Lake, 

 Kossogol Lake, Ob River. 



4. COBITIS TAENIA Linnaeus. 



There are no differences between the specimens from the Amur 

 River and C tmnia from Europe and Japan. O. sinensis Sauvage, 

 judging from one specimen from Pung-tung (Korea), seems to be a 

 distinct subspecies, C. txnia sinensis^ differing from typical tsenia by 

 its lateral blotches, being very high, narrow, and extending far below 

 the lateral line. 



C. tpenia is widely distri])uted through the Amur basin. We have 

 specimens from Argun River, Albasin, Khingham, Khanka Lake, 

 Ussuri River, mouth of Amur. 



