珍ちん渦うず虫むし

noun

xenoturbellan

A zoological term for a small group of simple, worm-like marine animals classified as basal deuterostomes. Rare in everyday language; used mainly in biology contexts.

• 珍ちん渦うず虫むしは、海かい底ていの泥どろの中なかに生せい息そくする原げん始し的てきな動どう物ぶつだ。

  Xenoturbellans are primitive animals that live in the mud on the seafloor.