57. Callochiton bouveti Thiele, 1906 [Figs 19A–C]

Callochiton bouveti Thiele, 1906: 330, pl. 29, figs 9–10

Material examined. • 1 spm, Stn. 1; • 21 spms, Stn. 2; • 1 spm, Stn. 7.

Type locality. East off Bouvet Island, 567 m depth.

Bathymetric distribution. 9–567 m.

Substrate. Hard and soft bottoms.

Geographical distribution. ANTARCTICA: Antarctic Peninsula. SUBANTARCTICA: Bouvet Island. SCOTIA ARC: South Georgia, South Sandwich Islands, South Orkney Islands, South Shetland Islands. SOUTH AMERICA: Magellan Strait, Malvinas/Falkland Islands.

Remarks. We found this species in Fildes Strait and Ardley Cove in depths between 50 and 70 m. It was already known from Fildes Strait by previous studies.

References. Bergenheyn (1937), Kaas & van Belle (1985b), Götting (1993), Forcelli (2000), Aldea et al. (2016, 2020).