26. Cuspidaria minima (Egorova, 1993) [Figs 11E–F]

Subcuspidaria minima Egorova, 1993: 164, pl. 3, figs 2–3

Material examined. • 1 spm, Stn. 3; • 2 spms, Stn. 6; • 1 spm, Stn. 10.

Type locality. East of Southern Orkney Islands, 430-450 m depth.

Bathymetric distribution. 15–450 m.

Substrate. Soft bottom.

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

Remarks. The species differentiation between C. minima and C. concentrica Thiele, 1912 is not clear. The characteristics listed by Zelaya & Ituarte (2006) are partly blurred. In our opinion, the present material most closely resembles C. minima, whose type locality is not far (800 km) from King George Island and only 200 km from the Elephants Islands, from where Zelaya & Ituarte (2026) re-described this species. Although the posterior tooth of the left valve is somewhat weak, the right valve has a clearly posterior tooth similar to that shown in Egorova (1993) and Zelaya & Ituarte (2006). We found it in depths of 60 m. The species is already known from King George Island.

References. Egorova (1993), Engl (2012), Zelaya & Ituarte (2006), Steger et al. (2023).