COMIWRATIVE STUDY OF S(;0MBR(5in FISHES. 42I 



i)f siaiill inicyisli spots ulou^' the latoml iulhIuiu liue. Fius blacldsli, voutnils 

 und ftnal fiulets excepted. 



It i^ remarkrtble that this fish spawns id the month of Daidökö, near 

 Cliinnnupj in -Tnly, iiiid the iiniuature fisli is canglit in stjw nets near tlie 

 pi)rt, in Angnst and September. Grows to a length of more tL-in one and a 

 half metres, and about fifteen k^ in weight. Matures when the fish is 

 alwut 2.25 kg in weight and 75 cm in length. At Chinnaiipo the; wat(>r 

 is turbid, of a brownish col.mr, and in warm seasons its density at 15° C is 

 1.91-2(J— 1.0164 neai- the surface, and 1.0166— 1.0IS2 near the bottom. 



So far as we know the distribution of this species is limited to the west 

 and south coasts of Chosen. 



Caught in summer and autumn with drift nets or in pound-nets. The 

 fishery of tliis fisli in Daidökö was begun by Japanese fishermen since 1917. 



It feeds on sardines, anchovies and shrimi^s. 



Very nice food fish ; but becomes inferior in the spa%vning season. 



Cybium niphonimn Schlegel. 



Sawai'a, sagoslii. 



Figs. 6, 9, 32, 41. 



? Cghium niiMniwn. Cuv. & Val, Hist. Nat. Poiss., VHI. 180, 1831. 



Cybium mplioniuin, Schlegel, Fauna Japon. Poiss., 101, Tab. 53, Fig. 2; Ivisliinouye, Sui. 



Gak. Ho, I, 10, PI. 1, Fig. i, 1915. 

 Scom'ieromorus nip/toniux, Tanaka, Fish Japan. I — X, 151, Pis. 42, 11, 1912. 



D. 19, 15, 9. A. 15-17, 8. Gill-rakere 3 + 9-10. Vert. 22 + 28. 



Body slender, elongated, and compressed, covered with such minute scales 

 that they ai'e not stripped before cooking. Corselet indistinct. First doi'sal 

 very long, and its dorsal outline is of very slight slope. Pectoral concave at 

 the inferior posterior margin. Lateral line imdulating, and has a marked 

 curve below the second dorsal. Many small branch-canals are found on both 

 sides of the lateral line, but they lu-j not so distuict as in C. gidtatum and 

 C. koreanum. Teeth in jaws lanceolate, curved, and trenchant, about 25 in 

 the upper and about 20 in the lower jaw. They ai-e a little smaller than 

 those of other species. Villous teeth on the vomer and palatines, but none on 

 the tongue. Only one gill-raker on the second gill-arch. 



