noun
siphonophore
A marine animal of the order Siphonophorae, a colonial organism related to jellyfish.
管クラゲはクラゲの仲間で、群体を作る。
The siphonophore is a relative of jellyfish and forms colonies.
クラゲ is the general term for jellyfish, while 管クラゲ specifically refers to siphonophores, which are colonial organisms.
Compound of 管 (くだ, 'tube') + クラゲ (くらげ, 'jellyfish'), referring to the tubular structure of siphonophores.