Athecata

from The Collaborative International Dictionary of English v.0.48

Tubularida \Tu"bu*lar`i*da\, n. pl. [NL.] (Zool.)
   An extensive division of Hydroidea; the tubularians; --
   called also {Athecata}, {Gymnoblastea}, and {Tubulariae}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Athecata \Ath`e*ca"ta\, n. pl. [NL., fr. Gr. 'a priv. + ? chest,
   box.] (Zool.)
   A division of Hydroidea in which the zooids are naked, or not
   inclosed in a capsule. See {Tubularian}.
   [1913 Webster]

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