Chalinula renieroides Schmidt, 1868

Evcen, Alper, Çinar, Melih Ertan, Zengin, Mustafa, Süer, Serdar & Rüzgar, Melih, 2016, New records of five sponge species (Porifera) for the Black Sea, Zootaxa 4103 (3), pp. 267-275 : 269

Chalinula renieroides Schmidt, 1868

Figure 2 B, 3B, 4B

Chalinula renieroides Schmidt 1868 , 7; De Weerdt 2000, 59, Fig, 3U, 44A–C.

Material examined. ESFM –POR / 2014– 0 0 2, October 2014, 30 m, on Mytilus galloprovincialis , 1 specimen.

Description. The specimen is massive and encrusting, and grey-brown in color (fixed specimen) ( Fig. 2 B). Specimen has slightly hispid surface and soft consistency. Oscules are non-elevated, 2-3 mm in size. Choanosomal skeleton has an arranged unispicular (occasionally paucispicular) reticulation that consists of 2-6 spicules in every cross section ( Fig. 3 B). Spicules only consist of robust, short, curved oxeas: 60-100 x 2-8 µm ( Fig. 4 B). All skeletal column include a few amount of sponging which are present at the nodes of the spicules.

Habitat and distribution. This species was found on a Mytilus galloprovincialis at 30 m depth in the Black Sea. It is a common species inhabiting shell and rocky substrata in the shallow-water environments in the western and eastern Mediterranean Sea ( Pulitzer-Finali 1978, De Weerdt 2000, Voultsiadou 2005).

Figures

FIGURE 2. Photographs of sponges: A. Hymedesmia (Hymedesmia) pansa, B. Chalinula renieroides, C. Haliclona (Halichoclona) fulva, D. Haliclona (Rhizoniera) rosea, E. Ircinia variabilis (scale bar: for A = 20 cm, B = 20 cm, C = 15 cm, D = 10 cm, E = 25 cm).

FIGURE 3. Skeleton networks of sponges: A. Hymedesmia (Hymedesmia) pansa, B. Chalinula renieroides, C. Haliclona (Halichoclona) fulva, D. Haliclona (Rhizoniera) rosea E. Ircinia variabilis: 1. secondary fibres, 2. primary fibrils, 3. thin filaments. (Scale bar: for A = 150 µm, B = 180 µm, C = 150 µm, D = 130 µm, E 1, 2 = 100 µm, E 3 = 120 µm).

FIGURE 4. Spicules of sponges: A. Hymedesmia (Hymedesmia) pansa: 1. straight (subtylo) tornotes, 2. acanthostyles, 3. arcuate isochelae, B. Chalinula renieroides: curved oxeas, C. Haliclona (Halichoclona) fulva: fusiform oxeas, D: Haliclona (Rhizoniera) rosea: oxeas (Scale bar: A 1 = 30 µm, A 2 = 30 µm, A 3 = 10 µm, B = 20 µm, C = 40 µm, D = 25 µm).