Mysella antarctica (E. A. Smith, 1907 )

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 : 420

20. Mysella antarctica (E. A. Smith, 1907) [ Figs 10A–C ]

Tellimya antarctica E. A. Smith, 1907: 3 , pl. 2, figs 16–16b

Material examined. • 1 spm, Stn. 3.

Type locality. Winter Quarters, McMurdo Sound (Ross Sea), 23 m depth.

Bathymetric distribution. 23–1449 m.

Substrate. Soft bottom.

Geographical distribution. ANTARCTICA: Bransfield Strait, Weddell Sea, Ross Sea. SUBANTARCTICA: -. SCOTIA ARC: South Shetland Islands. SOUTH AMERICA: -.

Remarks. This species has a roundish trapezoidal shape and can reach a shell length of up to 7 mm. Our specimen has a length of 4.3 mm and stands out from the Altenaeum species mentioned above by its shape and size alone. We found it at a station in Ardley Cove at a depth of 100 m.

References. Dell (1964, 1990), Mühlenhardt-Siegel (1989), Engl (2012), Huber (2015).

Figures

FIGURE 10. A–C: Mysella antarctica (E. A. Smith, 1907); D–F: Pseudokellya franki Zelaya & Ituarte, 2009; G–H: Thyasira debilis (Thiele, 1912); I–J: Thyasira scotiana Zelaya, 2009. Unless otherwise indicated, the scale is always 1 mm.