Hemigellius fimbriatus (Kirkpatrick, 1907)

Göcke, Christian & Janussen, Dorte, 2013, Demospongiae of ANT XXIV / 2 (SYSTCO I) Expedition — Antarctic Eastern Weddell Sea, Zootaxa 3692 (1), pp. 28-101 : 78

Hemigellius fimbriatus (Kirkpatrick, 1907)

( Fig. 10 F)

Hemigellius fimbriatus (Kirkpatrick, 1907) : Vacelet & Arnaud 1972: 20, fig. 6, 7.

Synonymy:

Gellius fimbriatus Kirkpatrick, 1907: 286 –287, 1908: 46, pl. 17, figs 2, 2a, pl. 24, fig. 2a–b. Not Gellius rudis Topsent, 1901: 14 , pl. 1, fig. 9, pl. 3, fig. 4.

Gellius rudis sensu Kirkpatrick, 1908: 45 , pl. 17, figs 1, 1a, pl. 24, fig. 1a. Hemigellius rudis sensu Burton, 1932: 272 . Desqueyroux-Faúndez, & Valentine 2002: 883, fig. 6a–d.

Material. 1 specimen from station 048-1 (SMF 11810), 602.1 m, 70° 23.94' S, 8° 19.14' W, 12.01.2008.

Description. Sponge massive, surface hispid with few oscules about 5 mm in diameter. Skeleton of very long primary paucispicular fibres, oriented towards surface, interconnected irregularly by single spicules. Ectosome a palisade-like arrangement of oxeas based on main fibres. Oxeas 490–550 µm x 15 µm, sigmas about 35 µm.

Remarks. The species has been well characterized before by Kirkpatrick (1908), Burton (1932, as H. rudis ) and Desqueyroux-Faúndez and Valentine (2002). Our specimen is in general accordance with the species description by Kirkpatrick (1908). The species and its reassignment to the newly created genus Hemigellius by Burton (1932) are of a complicated taxonomic history which is analyzed in Desqueyroux-Faúndez and Valentine (2002).

Figures

FIGURE 10. Habitus pictures. A: Myxilla (Burtonanchora) asigmata (Topsent, 1901) (SMF 11824), in ethanol, B: Phelloderma sp. nov. (SMF 11726), large sponge, growing besides small T. semisuberites (SMF 11727), alive, ex situ, C: Mycale (Oxymycale) acerata Kirkpatrick, 1907 (SMF 11800), alive, ex situ, D: Axinella antarctica (Koltun, 1964) (SMF 11835), in ethanol, E: Hemigellius bidens (Topsent, 1901) (SMF 11793), in ethanol, F: Hemigellius fimbriatus (Kirkpatrick, 1907) (SMF 11810), in ethanol, G: Cladocroce gaussiana (Hentschel, 1914) (SMF 11837), in ethanol, H: Haliclona (Reniera) sp. (SMF 11818), in ethanol. Scale bars: A: 10 mm, B: 5 mm, C: 40 mm, D: 5 mm, E: 10 mm, F: 10 mm, G: 10 mm, H: 10 mm.