有孔虫目

无脊椎

Perforata \Per`fo*ra"ta\ (p[~e]r`f[-o]*r[=a]"t[.a]), n. pl. [NL.
See {Perforate}.] (Zo["o]l.)
(a) A division of corals including those that have a
porous texture, as Porites and Madrepora; -- opposed
to Aporosa.
(b) A division of Foraminifera, including those having
perforated shells.


Aporosa \Ap`o*ro"sa\, n. pl. [NL., fr. Gr. ?. See {Aporia}.]
(Zo["o]l.)
A group of corals in which the coral is not porous; --
opposed to {Perforata}.