NOTE ON THE SALMON AND TROUT OF JAPAN. 



B}' David Starr Jordan, 



Of Stanford UniversUi/, California. 



In these Proceedings for 1902, Jordan and Snyder'^' have given a 

 review of the species of sahnon and trout in Japan. Recently, Mi'. 

 T. Kitahara has published'' some useful criticisms on this paper, 

 derived from his experience in the Imperial Bureau of Fisheries. 



Mr. Kitahara is certainly right in thinking that the Sahno pemii 

 of Brevoort is the trout called lio^ Sahno hJacl'i'^toni oi Hilgendorf. 

 That species must therefore become IIuclu) perryl instead of ILiclio 

 hlachhtoni. 



I think that Mr. Kitahara is also right in identifying the Salvia 

 masou of Brevoort and the ())icorhyric/iui< yes.'<oensfH of Hilgendorf 

 with the common trout of Japan called Ame-no-uwo, Kawa-masu, or 

 Yamabe, in its different stages of growth. This is the SaJmo riiacra- 

 sto)iia of Giinther, the species wrongly called Sahno j>ert'i/i by Jordan 

 and Snyder, This species should stand as Saliao laama. 



Mr. Kitahara states that the humpback salmon (Karafuto-masu) in 

 Japan as in America have black spots on the caudal fin. This species 

 was not seen by Jordan and Snyder in Japan. The supposed humpback 

 salmon or Yezomasu, figured }\y Jordan and Snyder as OncorJnjiiclm.s 

 mason, was prolxibly a dwarfish spawning female of OncorJnjnchuH 

 keta. 



Mr. Kitahara is probably right in regarding the I wana, SalveJhnix 

 ph/vhfs (Hilgendorf), the conmion charr or red-spotted trout of 

 Japan, as inseparable from SalreUnus viaJnai. Sal iu>I inns knndsjm, 

 of the Kurile Islands, is however a different tish. The name Sahno 

 )nillischltch of Walbaum is earlier than Sahno llsnfch Wan)aum, and 

 is l)ased also on the silver salmon. 



aProc. U. S. Nat. Mas., XXIV, 1902, p. 567, et seq. 



'^ Annotationes Zoologicae Japonenses, V, Pt. 3, 1904, pp. 117-120. 



Proceedings U. S. National Museum, Vol. XXVIII— No. 1399. 

 Proc. N. M. vol. xxviii — 04 24 365 



