Pygmy cuttlefish - Pygmy cuttlefish

Japanese: ヒメイカ(姫烏賊) - ヒメイカ（英語表記）pygmy cuttlefish

A cephalopod squid of the family Pelugalidae (illustration). It is the smallest of all squids, with a mantle length of about 1.5 cm. The mantle is long and cylindrical with a rounded rear end, and a round ear-like fin a little forward. The rear part of the dorsal part of the mantle secretes a lot of mucus, which allows the squid to temporarily attach to seaweed, the seabed, and other objects. The arms have two rows of suckers, and the tentacles are weak. It lives in eelgrass zones in inland bays throughout Japan from southern Hokkaido southward, and in the summer it lays eggs one by one by sticking them to local objects.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

頭足綱ヒメイカ科のイカ（イラスト）。イカ類中最小で，外套（がいとう）長は1.5cmくらい。外套膜は細長い円筒形で後端はまるく，少し前に寄ったところにまるい耳状のひれがある。外套膜背面の後部に粘液を多く分泌する部分があり，ここで海藻や海底そのほかの物に一時的に付着する性質がある。腕の吸盤は2列，触腕は弱い。北海道南部以南の日本各地の内湾などのアマモ帯にすんでいて，夏季に卵を1粒ずつ，地物に粘着させて産みつける。

出典　株式会社平凡社世界大百科事典第２版について　情報

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