Watasenia scintillans (B
ERRY), “Hotaru-ika, ” one of the luminous deep-sea squids, is known from the surrounding seas of Japan Proper, and it is fished in a large quantity in Toyama Bay during its spawning season, namely, April and May.
Although this squid has hitherto been unknown from Korean waters, the writer considers it to be abundant in the waters of the east coast of Korea according to the following facts:-
1) From June 1931 to December 1935, the writer found many pelagic eggs of a certain squid in the surface tows from the waters of the east coast of Korea. These eggs were iden-tified by the writer to be those of
Watasenia scintillans, on the basis of the careful comparison with the ripe ovarian eggs of the species in question.
2) Adult female and male specimens of
Watasenia scintillans were found in the stomachs of Scomber japonicus, and Alaska-Pollack,
Theragra chalcogramm, which had been angled in the water of the same region.
It appears that the this squid spawns mostly from July to August mainly in the coastal waters of Keisyôhokudô and Kôgendô of Korea.
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