NO. 1338. JAPANESE CA TFISHES-JORDA N AXD FO WLEIL 911 



spine nearly as long as the longest dorsal ray. The nmnher of anal rays 14. The 

 upper jaw projecting. The humeral process short and sharp. Color: Nearly uni- 

 form reddish-brown, with numerous spots, the ventral surface lighter colored. f?mall 

 siluroid fish living under stones and rocks in rocky streams, attaining the length of 

 105 mm. 



Found in different places in Hokkaido and in the IMain Island; our specimens in 

 the ^Museum are from Toshima in Hokkaido, and from Iwashiro, Owari, Kii and 

 from Mimasaku. (Ishikawa, M8.) 



SUMMviRY. 

 ORDER NEMATOGNATHI. 



Family I. Plotosio.e. 

 1. I'lotosus Lacepede. 



1. anguillark (Lacepede); Tokyo, Misaki, Wakanoura, Mogi, Nagasaki; in the sea. 



Family II. Silurid^. 



2. Tachysarus Lacepede. 



2. macidatus (Thmi])erg). 



3. Parusilurus Bleecker. 



3. asotus (Linna'us); Tokyo, Morioka, Niigata, Tana R., Kawatana, .'-iendai, Iclii- 

 noseki, Chikugo R., Tsuchiura, Lake Biwa, Formosa. 



4. Fluvidraco Jordan and Fowler. 



4. rawsonnetii (Steindachner) ; Wakanoura, Tsuruga, Lake Biwa, Lake Yogo, Yodo 

 R., Nagoya. 



5. nudiceps (Sauvage). . 



5. Paeudolxigrus Bleeker. 



6. aurantiacus (Schlegel); Tokyo, Kinu R., Tana R., Tsuchiura, Kitakami R. 



6. Leiocassis Bleeker. 



7. longir-ostris Giinther. 



7. LiolMyriis Hilgendorf. 



8. reinl Hilgendorf; Tsuyama, Niigata, Nagoya. 



