Benthic hydroids (Cnidaria, Hydrozoa) from the Ross Sea (Antarctica) collected by the New Zealand Antarctic expedition BioRoss 2004 with RV Tangaroa Author ÁLVARO L. PEÑA CANTERO text Zootaxa 2017 2017-07-14 4293 1 1 65 journal article 32747 10.11646/zootaxa.4293.1.1 dc2674e2-e260-4b6e-ad3a-731d610bccc5 1175-5326 828475 6FF96B5C-1F80-47ED-9962-19603DCBF550 Symplectoscyphus curvatus ( Jäderholm, 1917 ) Symplectoscyphus curvatus — Totton 1930 : 192–193, fig. 40a, b, pl. 2, figs 1–3; Peña Cantero, 2010a : 36 (synonymy); 2010b: 769–770; 2012: 861; 2013: 132–133; 2014a: 1724, fig. 6b. Material examined. Stn 8, few stems up to 20 mm high on Schizotricha turqueti (MNCN 2.03/635); Stn 25, numerous stems up to 80 mm high on tube of polychaete, with gonothecae (NIWA 117574); Stn 130, stem fragment 25 mm long (NIWA 117575); Stn 205, colony with six stems up to 19 mm high on stem of unidentifiable hydroid growing on pebbles (NIWA 117576); Stn 206, colony with nine stems up to 20 mm high on axis of dead gorgonian (MNCN 2.03/636). Ecology and distribution. Eurybathic species ( Peña Cantero 2010a ), collected at depths from 49 ( Peña Cantero 2008 ) to 2043 m ( Peña Cantero 2012 ); present material between 110 and 1014 m , epibiotic on tube of polychaete, axis of dead gorgonian and Schizotricha turqueti , and with gonothecae in February. Circum-Antarctic distribution ( Stepanjants 1979 ). Recently reported from off Peter I Island ( Peña Cantero 2010b ), Bellingshausen Sea ( Peña Cantero 2012 ), and off Low Island (Peña Cantero 2013), in West Antarctica ; and off Queen Mary Coast ( Peña Cantero 2014a ), in East Antarctica . See Peña Cantero (2010a) for previous records. In the Ross Sea, already known off Cape Adare ( Totton 1930 ). Present material off Cape Adare and Possession Islands .