Description (Figs 97 a – b). The material identified as this species comprise predominantly thin crusts (Fig. 97 a), but one sample, ZMA Por. 11188 (unfortunately it could not be found in the collection in 2019) consists of larger branches of 1.5 cm thick and 10 cm high (Fig. 97 b). The surface of the branched specimen is optically smooth, although bumpy in places, with easily detachable ‘ skin, overlaying a fibrous interior. Color of all reported specimens is orange in life, becoming whitish in preservation. Consistency soft. Skeleton (Fig. 97 c). The choanosomal skeleton consists of thick spicule tracts, 150 – 250 µm in diameter (up to 30 spicules in cross section), arranged in a plumoreticulate fashion in the elaborate specimen, but largely plumose in thin crusts. The tracts fan out near the surface into thinner tracts 20 – 40 µm in diameter. The ectosomal skeleton (Fig. 97 c) is of the aegogropila-type with intercrossing thicker (40 µm thick, 5 – 8 spicules across) and thinner (20 µm thick, 2 – 3 spicules across) forming a neat reticulation with meshes of 150 – 200 µm in widest extent. Microscleres are scattered between the ectosomal tracts and in the interior. No rosettes. Spicules (Figs 98 a – d). Mycalostyles, two overlapping categories of naviculichelae, sigmas. It is likely that the two sizes of naviculichelae conform to anisochelae II and III of other members of the subgenus. Mycalostyles (Figs 98 a, a 1), robust, straight, with prominent heads and pointed opposite ends, 324 – 407.6 – 478 x 5 – 8.9 – 15 µm. Anisochelae I (= II) (Figs 98 b), usually rare, occasionally absent, naviculichela-shape, robustly rounded in outline, two sides shaped slightly different, lateral alae well-developed, 22 – 29.8 – 36 µm. Anisochelae II (= III) (Figs 98 c), dominant, naviculichela-shape, oval in shape, with inner plate and median alae in various stages of closure, 13 – 14.8 – 18 µm. Sigmas I (Fig. 98 d), thin, symmetrical, with slightly incurved endings, not obviously divisible in size categories, 11 – 18.9 – 33 µm.
Sumber: Mycale species of the tropical Indo-West Pacific (Porifera, Demospongiae, Poecilosclerida)