
• (n. pl.) A division of Spongiae in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellinae.
Found on
http://thinkexist.com/dictionary/meaning/tetractinellida/
Te·trac`ti·nel'li·da noun plural [ New Latin , from Greek
te`tra- tetra- + ..., ..., ray, spoke.]
(Zoology) A division of Spongiæ in which the spicules are siliceous and have four branches diverging at right angles. Called also
Tetractinellinæ .
Found on
http://www.encyclo.co.uk/webster/T/34
No exact match found.