Lophocalyx profundum Janussen & Reiswig, 2009, n. sp. ...

• Main Authors: Janussen, Dorte, Reiswig, Henry M.
• Format: Text
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Hexactinellida; Lyssacinosida; Rossellidae; Lophocalyx; Lophocalyx profundum; Antarc*; Antarctica; Weddell Sea
• Online Access: https://dx.doi.org/10.5281/zenodo.5611962; https://zenodo.org/doi/10.5281/zenodo.5611962

Lophocalyx profundum n. sp. (Figs. 4 & 5, Table 2) Material examined: Holotype, SMF 10524, ANDEEP III, R.V. 'Polarstern', stn PS67/080-6, Weddell Sea, Antarctica, 22 Feb. 2005, 70°40.23'S, 14°43.78'W to 70°40.42'S, 14°43.83'W, 3006– 2978 m, ethanol. Paratypes: SMF 10605, and SMF 10604, same data Description: All three specimens are small globular, nearly spherical forms (Figs 4 A–C), 19–23 mm in diameter, with small terminal osculum 4–9 mm in diameter with smooth margins (without marginalia). Short basal extensions project from the lower margin, increasing contact with the substratum; attachment appears to be a combination of both direct (basiphytous) anchorage to small pebbles and insinuation of anchorate prostalia into sediments (lophophytous). All external surfaces carry prostalia projecting individually (not in tufts) up to 23 mm; these consist of a mixture of three spicule types: stout diactins, raised hypodermal anchorate pentactins, and raised regular hypodermal pentactins. Anchorate pentactins ... : Published as part of Janussen, Dorte & Reiswig, Henry M., 2009, Hexactinellida (Porifera) from the ANDEEP III Expedition to the Weddell Sea, Antarctica, pp. 1-20 in Zootaxa 2136 on pages 7-10, DOI: 10.5281/zenodo.188483 ...