Gymnocopa

• (n. pl.) A group of transparent, free-swimming Annelida, having setae only in the cephalic appendages.
Found on http://thinkexist.com/dictionary/meaning/gymnocopa/

Gymnocopa

Gym`no·co'pa (jĭm`no*kō'pȧ) noun plural [ New Latin , from Greek gymno`s naked + kw`ph an oar.] (Zoology) A group of transparent, free-swimming Annelida, having setæ only in the cephalic appendages.
Found on http://www.encyclo.co.uk/webster/G/70
No exact match found