Mycale (Carmia) rhaphidotoxa Hentschel 1912

• Main Authors: Van, Rob W. M., Aryasari, Ratih, De, Nicole J.
• Format: Other/Unknown Material
• Language: unknown
• Published: 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Poecilosclerida; Mycalidae; Mycale; Mycale rhaphidotoxa; North Cape
• Online Access: https://zenodo.org/record/4464354; https://doi.org/10.5281/zenodo.4464354

Mycale (Carmia) rhaphidotoxa Hentschel, 1912 Figs 47 a–h Mycale rhaphidotoxa Hentschel, 1912: 340, pl. XIX fig. 16. Mycale (Carmia) raphidotoxa; Carballo & Hajdu 2001: 214. Material examined. ZMA Por. 08838, Indonesia, Nusa Tenggara, Komodo, north cape, 8.4833°S 119.5683°E, depth 10–17 m, SCUBA, coll. R. W.M. van Soest, Indonesia-Dutch Snellius II Expedition stat. 096, field nr. 096/ IV/33, 19 September 1984 (dark brown); ZMA Por. 08937, Indonesia, Sulawesi, SE Sulawesi, SW Salayar, reef N of Pulau Bahuluang, 6.45°S 120.43°E, depth 10–15 m, SCUBA, coll. R. W.M. van Soest, Indonesian-Dutch Snellius II Expedition stat. 169, field nr. 169/ IV/05, 30 September 1984 (blackish brown). Description (Fig. 47a). Thin veneer covering coralline algae on dead coral, one specimen also on a keratose sponge (Fascaplysinopsis reticulata). Size 2–3 cm in lateral expansion, thickness a few mm. Colors in life reported as dark brown or blackish brown, beige in preservation. Surface in life showing striking venal pattern, but this is retracted in preservation. Consistency soft. Skeleton (Fig. 47b). Delicate and paucispicular. Thin, wispy megasclere tracts (up to 30 µm diameter, 5–7 spicules in cross section) are separately running from the substratum to the surface, where they fan out in brushes of individual spicules. No cross-connecting tracts. Tissue grainy. Microscleres occur throughout the choanosome, but are more common near the surface. Bundles of raphidotoxas are not common, most are scattered individually.A few rosettes of anisochelae I were noted, but likewise most anisochelae are scattered individually. Spicules (Figs 47 c–h). Mycalostyles, three categories of anisochelae, one category of sigmas, raphidotoxas. Mycalostyles (Fig. 47c, c 1), thin, with barely developed elongate heads, 199– 209.6 –224 x 1.5– 2.6 – 3 µm. Anisochelae I (Fig. 47d), well-developed, free part of the shaft 35–40% of spicule length, with slightly outcurving upper median alae, 31– 36.7 – 40 µm Anisochelae II (Figs 47e,e 1), generally similar to ...