Addenda to Pleistocene marine molluscs from the Atsumi Group, central Japan-cuttlebone of Sepiidae and octopod drilling holes in pelecypod and gastropod shells

Abstract

The sepiidan fossil and drilling holes attributed to octopodids from the Middle Pleistocene Atsumi Group, southwest Japan, are reported. A cuttlebone of Acanthosepion cf. esculentum (Hoyle) is the second record of Sepiidae from the Atsumi Group. The octopod drilling holes preserved in pelecypod and gastropod shells are figured for the first time from the group.