Rossella antarctica Carter 1872

• Main Authors: Göcke, Christian, Janussen, Dorte
• Format: Other/Unknown Material
• Language: unknown
• Published: 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Hexactinellida; Lyssacinosida; Rossellidae; Rossella; Rossella antarctica; Kerguelen; Burton; Kerguelen Island; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/5631272; https://doi.org/10.5281/zenodo.5631272

Rossella antarctica Carter, 1872 (Figs. 2 A–B, 3, Tab. 2) Synonymy: Rossella antarctica Carter, 1872: 414 –417, pl. 21, figs. 1–10; 1875: 117–118, pl. 10, fig. 4. Schulze 1887: 139–142, pl. 55, figs. 1–15. Schulze & Kirkpatrick 1910 b: 15–17, pl. 1, figs. 2 – 2 v. Burton 1929: 405–407, fig. 1 a. Koltun 1969: map 2; 1976: 165, pl. 1, fig. 1. Barthel & Tendal 1994: 90–93, fig. 32–34. Tabachnick 2002: 1444–1447, figs. 1–3. Rossella antarctica solida Kirkpatrick, 1907: 5 –11, pl. 1, figs. 1–4, pl. 4, figs. 2–3. Rossella antarctica gaussi Schulze & Kirkpatrick, 1910 a: 296; 1910 b: pl. 2, figs. 1 – 1 f. Rossella antarctica intermedia Burton, 1932: 254 –255, fig. 3 b. Acanthascus grossularia Schulze, 1886: 49; 1887: 145–147, pl. 56, figs. 1–12; 1897: 536–537. ? Acanthascus dubius Schulze, 1886: 49; 1887: 147–148, pl. 57, figs. 8–13. ? Rhabdocalyptus australis Topsent, 1901 a: 6; 1901 b: 37–38, pl. 2, figs. 5–6, pl. 4, figs. 14–24, pl. 5, fig. 1. Burton 1929: 407. Material examined. 26 specimens from station 48 - 1 (SMF 11734, 11735, 11908 –11915, 11916– 11930). Other Material examined: BMNH 1887.10. 20.49 from Kerguelen island, BMNH 1894.9. 20.1 (lectotype) from Antarctica, BMNH 1910.10. 28.5. ZMH S 2925 (Rossella antarctica gaussi, material from Schulze & Kirkpatrick 1910 a, b). Description. The habitus (Fig. 2 A–B) shows a well-developed velum of protruding pentactins, that usually covers the whole surface of the sponge. Single protruding diactins are also present. Big specimens sometimes show a fringe of diactins surrounding the osculum, but this is not regularly found. The body-form in general is barrel- or sack-shaped with a big inner cavity and usually one osculum at the top. A basis of long anchoring spicules at the bottom is usually present. We here chose two typical specimens from our material for detailed inspection. One is relatively small (SMF 11913), 7 cm high and 4 to 5 cm wide, has a very distinct velum of protruding pentactins, breached by long protruding diactins, regularly distributed ...