Pseudosuberites hyalinus Ridley & Dendy 1886

• Main Authors: Göcke, Christian, Janussen, Dorte
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Hadromerida; Suberitidae; Pseudosuberites; Pseudosuberites hyalinus; Antarc*; Antarctic
• Online Access: https://doi.org/10.5281/zenodo.6145148; http://treatment.plazi.org/id/03EF87D0CD3E880C80BEF8DDFC34FBEC

Pseudosuberites hyalinus (Ridley & Dendy, 1886) (compare Fig. 5 B) Pseudosuberites hyalinus (Ridley & Dendy, 1886): Topsent 1896: 127, 1900: 170. Kirkpatrick 1908: 21, pl. 26, fig. 7. Hentschel 1914: 52–53. Burton, 1930: 674. Van Soest 2002d: 238–239, fig. 9. Synonymy: Hymeniacidon ? hyalina Ridley and Dendy 1887: 168, pl. 45 fig. 6; Material. 1 specimen from station 048-1 (SMF 11769), 602.1 m, 70° 23.94' S, 8° 19.14' W, 12.01.2008, growing on the holotype of Cornulum antarcticum sp. nov (SMF 11770). Material examined for comparison: BMNH 1908.2.5.121c, National Antarctic Expedition HMS “Discovery”, stn. 10 hole, 130 fms, described in Kirkpatrick (1908), slide; BMNH 1910.1.1.750, Canon Norman’s Collection of British Sponges, stn. 32, wet specimen; BMNH 1926.10.26.63, Terra Nova Collection 1910–1913, Antarctic, stn. 3, dry specimen; BMNH 1949.10.19.54, “Manihine” Collections, English Channel 1949, stn. 66, 30 fms., 21.08.1949, 10th Cruise, Identification no. M’hine 105f, slide; BMNH 1982.9.6.38a, stn. 13, Vaagegrund, North of Litla Sotra, 60° 24’ 24” N, 5°7’ 6” E, 120 to 80 m, Norwegian Collection, Bergen, det. van Soest, Tendal, de Weerdt and Stone, spirit and slide specimens. Description. A small sponge growing on the holotype of Cornulum antarcticum sp. nov. (see below), thickly encrusting with a distinct central apex. Elongate rounded, wrapped around the tube-shaped substrate. Spicules tylostyles of a considerable size variation, about 250 to 950 µm in length and about 15 to 30 µm in diameter. Remarks. This species shows an extremely wide, almost global distribution (van Soest 2002d). This is probably due to the wide variance in characters and the relatively ambiguous species description by Ridley and Dendy (1886; 1887). The variance of characters in Antarctic specimens was furthermore extended by Kirkpatrick (1908) and later by Hentschel (1914), who described his specimens as a subspecies Pseudosuberites hyalinus var. compactus Hentschel, 1914. According to van Soest (2002d), not all records of the ...