(1)軟体動物。
(2)ten-armed oval-bodied cephalopod with narrow fins as long as the body and a large calcareous internal shell
(3)体長と同じ長さの細長い鰭と大きな石灰質の内殻が有る、10本の腕付きの卵型の体を持つ頭足類の軟体動物