also: こばんざめ
remora; suckerfish
General term for any fish of the remora family (Echeneidae), known for attaching to sharks, rays, and other large marine animals using a suction disc on their head.
コバンザメはサメのお腹にくっついて移動する。
Remoras travel by attaching themselves to the bellies of sharks.
live sharksucker
Specifically refers to the species Echeneis naucrates, the most common remora found in Japanese waters. Often used interchangeably with the general term in everyday contexts.
ダイビング中に大きなコバンザメを見つけた。
I spotted a large live sharksucker while diving.