Stegella lobata (Vanhöffen, 1910)

Campanularia verticillata var. grandis Hickson & Gravely, 1907: 23, pl. 4 fig. 25.

Campanularia lobata — Ritchie, 1913: 21.

Stegella grandis — Jäderholm, 1926: 3; Totton, 1930: 153, fig. 10a–c.

Stegella lobata —Peña Cantero et al., 2004: 2278–2280 (synonymy); Peña Cantero, 2006: 934–935; 2008: 453; 2010b: 763–764, fig. 2a–d; 2014a: 1715; Soto Ángel & Peña Cantero, 2015: 958 fig. 2g.

Material examined. Stn 52, two stems up to 23 mm high on Oswaldella stepanjantsae Peña Cantero, Svoboda & Vervoort, 1997 (NIWA 117505); Stn 112, one stem fragment 35 mm long, with two hydrothecae, basibiont of Abietinella operculata (Jäderholm, 1903) (MNCN 2.03/542).

Ecology and distribution. Shelf species (Peña Cantero et al. 2004), found at depths from 10 (Naumov & Stepanjants 1972) to 700 m (Naumov & Stepanjants 1962); present material between 152 and 351 m, epibiotic on Oswaldella stepanjantsae and basibiont for colonies of Abietinella operculata .

Circum-Antarctic distribution (Peña Cantero et al. 2004). Recently reported from off Livingston Island (Peña Cantero 2006, 2008), Peter I Island (Peña Cantero 2010b), and the South Sandwich Islands (Soto Ángel & Peña Cantero 2015), in West Antarctica, and off Queen Mary Coast (Peña Cantero 2014a), in East Antarctica . See Peña Cantero et al. (2004) for previous records. In the Ross Sea, already known from McMurdo (Hickson & Gravely 1907; Totton 1930), off Cape Royds (Ritchie 1913) and from Discovery Inlet (Jäderholm 1926). Present material comes from off Cape Adare and Cape Hallet.