Hemiarthrum setulosum P. P. Carpenter, 1876

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 : 441

58. Hemiarthrum setulosum P. P. Carpenter, 1876 [ Figs 19D–F ]

Hemiarthrum setulosum P. P. Carpenter, 1876: 44 [in Dall 1876]

Material examined. • 4 spms, Stn. 5; • 4 spms, Stn. 6; • 2 spms, Stn. 9; • 1 spm, Stn. 15.

Type locality. Kerguelen Islands , on stones at low water.

Bathymetric distribution. 0–380 m.

Substrate. Hard bottom and macro algae.

Geographical distribution. ANTARCTICA: Circum-Antarctic. SUBANTARCTICA: Crozet Islands, Kerguelen Islands, Macquarie Islands. SCOTIA ARC: South Georgia, South Sandwich Islands, South Orkney Islands, South Shetland Islands. SOUTH AMERICA: Magellan Strait, Tierra del Fuego, Malvinas/Falkland Islands.

Remarks. We found it in Ardley Cove in depths between 0 and 100 m. It was already known from Fildes Strait and Admiralty Bay by previous studies in depths between 0 and 30 m.

References. Thiele (1906), Bergenheyn (1937), Kaas & van Belle (1985a), Arnaud et al. (1986), Forcelli (2000), Sirenko (2006), Aldea et al. (2016, 2020).

Figures

FIGURE 19. A–C: Callochiton bouveti Thiele, 1906; D–F: Hemiarthrum setulosum P. P. Carpenter, 1876; G–I: Tonicina zschaui (Pfeffer, 1886). Unless otherwise indicated, the scale is always 1 mm.