Middle and Late Pleistocene Wild Boar Remains from Locality 1 of Ube Kosan Quarry in Yamaguchi Prefecture and from the Kannondo Cave Site in Hiroshima Prefecture, Western Japan

摘要

A systematic describption is given to a Middle Pleistocene remain (M_3) from Locality 1 of Ube Kosan Quarry, and three Late Pleistocene remains (frontal bone, I_2 and P_4) from the Kannondo cave site. These remains are important to elucidate morpholog- ical characters of wild boars inhabited the mainland of Japan during the Pleistocene, because wild boar remains dated certainly as the Pleistocene are quite limited in Japan.