Strongylacidon rubrum

Rützler, Klaus, Piantoni, Carla, Van, Rob W. M. & Díaz, Cristina, 2014, Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay, Zootaxa 3805 (1), pp. 1-129 : 64

publication ID	https://doi.org/ 10.11646/zootaxa.3805.1.1
publication LSID	lsid:zoobank.org:pub:F0B7652D-6E64-44CE-9181-5A10C8D594C7
DOI	https://doi.org/10.5281/zenodo.6130340
persistent identifier	https://treatment.plazi.org/id/C23A87C6-FF8C-FFE7-FF11-FBFB1E17F971
treatment provided by	Plazi
scientific name	Strongylacidon rubrum
status

Treatment

Strongylacidon rubrum View in CoL van Soest, 1984

Synonymy and references. Strongylacidon rubra van Soest, 1984a: 44, fig. 15.

Material. USNM 1229044, Carrie Bow Cay forereef, spur and groove zone, cryptic, 6 m; K. Ruetzler col. 1 Feb 1997.

External morphology. A very thin (0.1–1 mm) crust covering about 20 cm 2. Surface smooth, porous under high magnification but without obvious oscula. A few circular openings belong to overgrown serpulid worm tubes. Soft consistency, bright red color in life.

Skeleton structure. A crossection shows wisps of thin megascleres (strongyles) ascending brush-like from the base to the surface; sigmoid microscleres are dispersed throughout the tissue.

Spicules. Very thin, mostly straight strongyles with wide axial canal (black under transmitted light): 185–220 x 1–3 (200 x 2) Μm; sigmas in two size classes (some s-shaped), I: 27–30 (29) µm; II: 13–17 (15) µm.

Ecology. Overgrowing the base of a massive specimen of the sponge Svenzea zeai (Alvarez, van Soest and Ruetzler), 20 m.

Distribution. Caribbean Sea.