Bull. Jpn. Soc. Fish. Oceanogr. 69(2), Page 83-90, 2005   Seasonal distribution of Abyssicola macrochir (Günter) on the upper continental slope off the southern Tohoku coast, northeastern Japan, in relation to their life history Kunihiro Fujiwara†1, Satoshi Katayama2, Michio Omori1 and Daiji Kitagawa3 1Graduate School of Agricultural Sciences, Tohoku University, 1-1 Tsutsumidori-Amamiya machi, Aoba, Sendai, Miyagi 981-0914, Japan 2