Tedania (Tedaniopsis) oxeata Topsent 1916
Tedania (Tedaniopsis) oxeata Topsent, 1916 (Figure 8g –j) Restricted synonymy: Tedania oxeata Topsent, 1916. Material examined: 2 specimens collected at station 4 (SOI; 60°55' S, 44°04'W; 256 m; 2/3/2014; MACN-In 44400; IEO-CSIC Col.). Description: massive sponge, cavernous, soft, porous,...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2024
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| Online Access: | https://doi.org/10.5281/zenodo.10562191 http://treatment.plazi.org/id/03D687FDC51A8248FF45FE8F6C4EBCB1 |
| Summary: | Tedania (Tedaniopsis) oxeata Topsent, 1916 (Figure 8g –j) Restricted synonymy: Tedania oxeata Topsent, 1916. Material examined: 2 specimens collected at station 4 (SOI; 60°55' S, 44°04'W; 256 m; 2/3/2014; MACN-In 44400; IEO-CSIC Col.). Description: massive sponge, cavernous, soft, porous, beige in colour. Ectosome only evident in some parts of the specimens as a thin layer composed of a palisade of tornotes. Spicules are oxeas 480–720 µm by 20–35 µm, tornotes 480–550 µm by 10–20 µm and two categories of raphides 400–500 µm and 75–85 µm (Figure 8 g-j). Remarks: This is an unusual Tedania species, having oxeas as the main megascleres, instead of styles. It has been recorded from several Antarctic regions (e.g. Koltun 1964; Burton 1929, 1932; Desqueyroux 1975; Ríos 2006), but this finding represents the first record for the SOI. Published as part of Schejter, Laura, Cristobo, Javier & Ríos, Pilar, 2024, New records of demosponges (Porifera) from the South Orkney Islands (Antarctica) with a checklist for the region, pp. 401-430 in Zootaxa 5403 (4) on page 418, DOI:10.11646/zootaxa.5403.4.1, http://zenodo.org/record/10562154 |
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