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 Eudendrium generale von Lendenfeld, 1885 Eudendrium generale — Puce et al. , 2002 : 368–370, fig. 2, fig. 3A, B; Peña Cantero, 2009: 1745; Peña Cantero et al. , 2013: 736, figs 2e, 3c–e; Soto Àngel & Peña Cantero, 2015 : 984–985, fig. 2c–e. Material examined. Stn 102, one colony with few stems, up to 5 mm high, on gravel (NIWA 117478). Remarks. The polyps are red and small and their tentacles have a thorny appearance. The cnidome consists of larger ( 12–13 x 6–7 µm) and smaller (6.5– 7 x 3 µm) microbasic euryteles. Ecology and distribution. In Antarctic waters, a shelf species found at depths between 10 ( Puce et al. 2002 ) and 702 m (Peña Cantero 2009); present material at 536 m , epilithic on gravel. Epibiont on polychaete tube and sponge ( Soto Àngel & Peña Cantero 2015 ) and basibiont for other hydroids (Peña Cantero 2009; Peña Cantero et al. 2013). Gonophores in January ( Puce et al. 2002 ), December (Peña Cantero et al. 2013) and April ( Soto Àngel & Peña Cantero 2015 ). Species with an Australian-Antarctic distribution (Peña Cantero 2009). In Antarctic waters known from Tethys Bay in the Ross Sea ( Puce et al. 2002 ; Peña Cantero et al. 2013) and the Balleny Islands (Peña Cantero 2009), in East Antarctica , and from the South Sandwich Islands and the Discovery Bank ( Soto Àngel & Peña Cantero 2015 ), in West Antarctica . Present material from off Cape Adare.