“Gellius microxes n. sp. (Fig. 27).
Monotype: IOAS S80-20.
Locality: Yulin.
Diagnosis: The sponge is encrusting, attached on the shell of bivalves. The consistency is soft and fragile. Colour is pale in alcohol.
Skeleton: The skeleton consists of rather close-meshed reticulation of unispicule, the meshes are triangular or quadrilateral, the sides 100-150 µm long (fig. 27: h).
Oxea are of two kinds, slightly curved, 154 x 3 µm to 196x7 µm in dimension (fig. 27 : i), straight and finely echinated, slender raphides, 92x2 µm to 103x3 µm in dimension (fig. 27: a).
Toxa, as microsclere is a very large spicule, actually, it is a kind of macrosclere (fig. 27: b—d) curved to form toxa, 70x2 µm to 86x3 µm.
Sigma of ordinary shape (fig. 27: f, g), 14 -- 22 µm long, and 1 -- 2 µm in diameter. Microxea, finely echinate, 33x2 µm to 36x2 µm, is the characteristic spicule of the spicies (fig. 27: e).
Remark: The structure of G. microxea is similar to that of G. angulatus (Bowerbank), but differs markedly from its congeners in having characteristic microxea.”
(Jihne, 1886)
