Lissarca notorcadensis Melvill & Standen 1907

11. Lissarca notorcadensis Melvill & Standen, 1907 [Figs 6F–H] Lissarca notorcadensis Melvill & Standen, 1907: 144, figs 14, 14a Material examined. • 1 spm, Stn. 2; • 9 spms, Stn. 15. Type locality. Scotia Bay, South Orkney Islands, 16 to 27 m depth. Bathymetric distribution. 18–1120 m, but usually in shallower depths. Substrate. Epibenthic, attached to spines of sea urchins and only exceptionally to sponges, bryozoans, gorgonians, hydroids, ascidians or algae. Geographical distribution. ANTARCTICA: Circum-Antarctic. SUBANTARCTICA: -. SCOTIA ARC: South Georgia, South Sandwich Islands, South Orkney Islands, South Shetland Islands. SOUTH AMERICA: -. Remarks. Our observations were made at depths of 70 and 90 m. The species is already known from the Maxwell and Admiralty Bays. According to Güller & Zelaya (2025), this species is probably a species complex of at least two different species that occur either on the islands of the Scotia Arc or in the Antarctic. References. Nicol (1966), Arnaud et al. (1986), Dell (1990), Absher & Feijó (1998), Narchi et al. (2002), Aldea & Troncoso (2010a), Engl (2012), Steger et al. (2023), Güller & Zelaya (2025).