anacanths

from The Collaborative International Dictionary of English v.0.48

Anacanthini \An`a*can"thi*ni\, Anacanths \An"a*canths\, n. pl.
   [NL., fr. Gr. 'an priv. + ? thorny, fr. ? thorn.] (Zool.)
   A group of teleostean fishes destitute of spiny fin-rays, as
   the cod.
   [1913 Webster]