Margarella antarctica (E. Lamy, 1906)

Zettler, Michael L. & Bick, Andreas, 2025, Molluscs from a shallow bay of King George Island (Antarctica, South Shetland Islands): An annotated checklist with new distributional records, Zootaxa 5631 (3), pp. 401-450 : 425-427

30. Margarella antarctica (E. Lamy, 1906) [ Figs 12H–L ]

Margarita antarctica E. Lamy, 1906: 481 , fig. 5

Material examined. • 1 spm, Stn. 2; • 4 spms, Stn. 3; • 1 spm, Stn. 5; • 7 spms, Stn. 7; • 3 spms, Stn. 8; • 7 spms, Stn. 9; • 7 spms, Stn. 10; • 8 spms, Stn. 13; • 16 spms, Stn. 15.

Type locality. Wandel (or Booth) Island and Flanders Bay (Antarctic Peninsula).

Bathymetric distribution. 0–460 m.

Substrate. Hard bottom and macroalgae but also soft bottom.

Geographical distribution. ANTARCTICA: Antarctic Peninsula. SUBANTARCTICA: -. SCOTIA ARC: South Orkney Islands, South Shetland Islands. SOUTH AMERICA: -.

Remarks. We found it at several stations between the intertidal zone and 100 m depth. Margarella antarctica is associated to spots with macroalgae and rocks. The species is already known from Maxwell and Admiralty Bays. It seems to be quite common in the waters around King George Island (see also Engl 2012).

References. Arnaud et al. (1986), Rauschert (1991), Aldea & Troncoso (2010a), Engl (2012), Aldea et al. (2016), Amsler et al. (2022).

Figures

FIGURE 12. A–D: Nacella concinna (Strebel, 1908); E–G: Antimargarita dulcis (E. A. Smith, 1907); H–L: Margarella antarctica (E. Lamy, 1906). Unless otherwise indicated, the scale is always 1 mm.