Sertularella curvata Jäderholm 1917: 9, pl. 1, figs 10, 11.
Sertularella curvatus – Stepanjants 1979: 72, pl. 17, fig. 3 (in part).
Symplectoscyphus curvatus – Stechow 1922: 148; 1923: 171; Totton 1930: 192, fig. 40 a, b, pl. 2, figs 1–3; Blanco & Bellusci de Miralles 1972: 12, pl. 3, figs 20, 21; Blanco 1984: 24 –26, pl. 20, fig. 46, pl. 21, figs 47, 48, pl. 22, figs 49, 50; 1994: 201; Vervoort 1993: 239; Peña Cantero & García Carrascosa 1995: 71 –73, fig. 31 a, d; Peña Cantero et al. 2002: 1523 –1525, fig. 1 C, D; Peña Cantero 2006: 942–943, fig. 4 G; 2008: 460; 2010: 769-770; Peña Cantero & Vervoort 2009: 87, fig. 2 e.
? Symplectoscyphus curvatus – Briggs 1938: 31; Branch & Williams 1993: 13, fig.
Not Symplectoscyphus curvatus – Millard 1977: 26, figs 7 a–c.
Not Sertularella curvatus – Naumov & Stepanjants 1972: 34, 45, fig. 7 (= Symplectoscyphus anae Peña Cantero et al., 2002)
Ecology. Eurybathic species, collected at depths from 49 (Peña Cantero 2008) to 799 m (Peña Cantero et al. 2002). On rocky bottoms (Stepanjants 1979). Epibiotic on bryozoans (Stepanjants 1979), polychaete tubes (Peña Cantero 2008; Peña Cantero & Vervoort 2009), gorgonians (Peña Cantero & García Carrascosa 1995; Peña Cantero 2008; 2010) and hydroids (Stepanjants 1979; Peña Cantero & García Carrascosa 1995; Peña Cantero et al. 2002; Peña Cantero 2006; 2008; 2010; Peña Cantero & Vervoort 2009). Basibiont for other species of hydroids (Peña Cantero & Vervoort 2009). Gonothecae: January (Stepanjants 1979), February (Peña Cantero et al. 2002; Peña Cantero & Vervoort 2009; Peña Cantero 2010) and December (Stepanjants 1979).
Distribution. Circum-Antarctic (Stepanjants 1979). West Antactica: south of Snow Hill, Graham Land (Jäderholm 1917), Low Island (Blanco 1984; Peña Cantero & Vervoort 2009), Peter I Island (Blanco & Bellusci de Miralles 1972; Peña Cantero 2010), the South Orkney Islands and the South Shetland Islands (Stepanjants 1979), King George Island (Peña Cantero & García Carrascosa 1995) and Livingston Island (Peña Cantero 2006; 2008), in the South Shetland Islands, Antarctic Peninsula (Peña Cantero 2008), east coast of the Weddell Sea (Peña Cantero et al. 2002), Bransfield Island and Bransfield Strait (Peña Cantero & Vervoort 2009). East Antarctica: off Cape Adare, in the Ross Sea (Totton 1930). Doubtful record from off Marion and Prince Edward islands, in sub-Antarctic waters (Branch & Williams 1993).