||Te*trac`ti*nel"li*da (?), n. pl. [NL., from
Gr. te`tra- tetra- + &?;, &?;, ray, spoke.] (Zoöl.)
A division of Spongiæ in which the spicules are siliceous and
have four branches diverging at right angles. Called also
Tetractinellinæ.
||Te*trac`ti*nel"li*da (?), n. pl. [NL., from
Gr. te`tra- tetra- + &?;, &?;, ray, spoke.] (Zoöl.)
A division of Spongiæ in which the spicules are siliceous and
have four branches diverging at right angles. Called also
Tetractinellinæ.