Campanularia hicksoni Totton, 1930

ÁLVARO L. PEÑA CANTERO, 2017, Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa, Zootaxa 4293 (1), pp. 1-65 : 27

Campanularia hicksoni Totton, 1930

Campanularia laevis — Hickson & Gravely, 1907: 25, pl. 4 fig. 26; Ritchie, 1913: 19, fig. 5.

Campanularia hicksoni Totton, 1930: 148 –150, fig. 7a–e; Peña Cantero et al., 2004: 2297–2299 (synonymy); Peña Cantero, 2008: 461 –462; 2010b: 770; 2014a: 1725; Soto Àngel & Peña Cantero, 2015: 1000, fig. 9c–d.

Material examined. Stn 126, four pedicels and a single hydrotheca, basibiont of Lafoea dumosa (NIWA 117506); Stn 130, three hydrothecae on Staurotheca densa (MNCN 2.03/543); Stn 134, several hydrothecae on tube of benthic organism (NIWA 117507); Stn 139, three hydrothecae on Hydractinia sp. and Staurotheca nonscripta (NIWA 117508); Stn 178, five hydrothecae on Oswaldella stepanjantsae (MNCN 2.03/544).

Measurements (in µm). Height of hydrothecae 1550–3200; diameter at aperture 800–1350.

Ecology and distribution. Eurybathic species found at depths from 10 ( Naumov & Stepanjants 1972) to 779 m ( Peña Cantero 2014a); present material between 60 and 348 m, epibiotic on Hydractinia sp., Oswaldella stepanjantsae , Staurotheca densa , S. nonscripta and tube of benthic organism, and basibiont for colonies of Lafoea dumosa .

Circum-Antarctic distribution (Peña Cantero et al. 2004). Recently reported from off Deception and Livingston islands ( Peña Cantero 2008), Peter I Island ( Peña Cantero 2010b) and the South Sandwich Islands ( Soto Àngel & 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; Ritchie 1913; Totton 1930), Cape Royds ( Ritchie 1913) and Cape Adare ( Totton 1930). Present material collected in Robertson Bay and off Cape Adare, Adare Peninsula and Moubray Bay .