Sertularella plectilis Hickson & Gravely 1907: 20, pl. 3, fig. 21; Ritchie 1913: 10, 30, figs 8, 9, 11; Jäderholm 1917: 10, pl. 1, fig. 8; 1926: 5; Stepanjants 1972: 69, fig. 14; 1979: 74, pl. 13, fig. 4.
Sertularella (Symplectoscyphus) plectilis – Broch 1948: 5, 9–13, fig. 2 f, g.
Symplectoscyphus plectilis – Stechow 1922: 148; 1923: 172; Totton 1930: 193, fig. 41, pl. 2, figs 4, 5; Rees & Thursfield 1965: 131; Blanco 1967 b: 77, pl. 5, figs 11–15; 1992: 149–153, figs 7–10; Vervoort 1972 b: 354, fig. 8 b, c; 1993: 241; Bouillon et al. 1995: 74; Peña Cantero et al. 2002: 1550 –1553, fig. 12; Peña Cantero & Gili 2006: 768; Peña Cantero 2008: 461; Peña Cantero & Vervoort 2009: 88.
? Symplectoscyphus plectilis – Vervoort 1972 a: 133, fig. 42; Naumov & Stepanjants 1972: 34, 42; Millard 1977: 34, fig. 11 A–C.
Sertularella glacialis – Vanhöffen 1910: 325, fig. 40 a–c.
Symplectoscyphus naumovi – Blanco & Bellusci de Miralles 1972: 19, fig. 33.
Symplectoscyphus sp. 4 Peña Cantero & García Carrascosa 1995: 92, fig. 40 f–h.
Not Symplectoscyphus plectilis – Blanco 1984: 29 –31, pl. 26 figs 58–60, pl. 27 fig. 61 [= S. naumovi Blanco, 1969]
Ecology. Shelf species, found at depths from 7 (Vervoort 1972 b) to 457 m (Totton 1930). On bottoms of detritus, mud, sand, stones, boulders, rocks and different mixed bottoms (Totton 1930; Broch 1948; Naumov & Stepanjants 1972; Stepanjants 1979; Peña Cantero et al. 2002). Epibiotic on hydroids (Naumov & Stepanjants 1972; Stepanjants 1979; Peña Cantero et al. 2002), sponges (Naumov & Stepanjants 1972; Peña Cantero 2008) and bryozoans (Naumov & Stepanjants 1972). Gonothecae: January (Totton 1930; Peña Cantero 2008), February (Totton 1930; Peña Cantero et al. 2002), from June to August (Ritchie 1913) and from January to December (Stepanjants 1979).
Distribution. Circum-Antarctic (Stepanjants 1979). West Antarctica: Bouvet (Broch 1948; Peña Cantero & Gili 2006), South Georgia (Jäderholm 1917), Leith Harbour, in South Georgia (Blanco 1992), Peter I Island (Blanco & Bellusci de Miralles 1972; Peña Cantero 2010), Deception Island, in the South Shetland Islands (Peña Cantero 2008), Palmer Archipelago (Vervoort 1972 b), Bransfield Island (Peña Cantero & Vervoort 2009), Península Sanavirón, Low Island, Peterman Island, Bryde Island and at 62 º 40 'S, 64 º 10 'W (Blanco 1992), and east coast of the Weddell Sea (Peña Cantero et al. 2002). East Antarctica: McMurdo Sound (Ritchie 1913; Totton 1930), Cape Royds (Ritchie 1913) and Discovery Island (Jäderholm 1926), in the Ross Sea, Adélie Land (Naumov & Stepanjants 1972), the Davis Sea (Stepanjants 1972; 1979) and the Friendship Sea (Stepanjants 1979). Doubful records from Kerguélen (Millard 1977) and Palmer Archipelago (Vervoort 1972 a).