Symplectoscyphus glacialis – Broch 1948: 5, 9–13, figs 2 d, e, 3 a.
Symplectoscyphus sp. 5 Peña Cantero & García Carrascosa 1995: 92 –94, fig. 41 a–e. Symplectoscyphus sp. 7 Peña Cantero & García Carrascosa 1995: 94 –96, fig. 42 a–c. Symplectoscyphus frigidus Peña Cantero et al. 2002: 1529 –1533, fig. 5.
Ecology. Shelf species, collected at depths between 86 (Broch 1948) and 402 m (Peña Cantero et al. 2002). On bottoms of detritus, mud, mud with sand, and stones (Broch 1948; Peña Cantero & García Carrascosa 1995; Peña Cantero et al. 2002). Epibiotic on hydroids and bryozoans (Peña Cantero & García Carrascosa 1995; Peña Cantero et al. 2002). Basibiont for colonies of other hydroids (Peña Cantero et al. 2002). Gonothecae: January and February (Peña Cantero et al. 2002).
Distribution. West Antarctic: Peter I and Bouvet islands (Broch 1948), Shag Rocks, in the South Georgia region, and King George Island, in the South Shetland Islands (Peña Cantero & García Carrascosa 1995) and the east coast of the Weddell Sea (Peña Cantero et al. 2002).