Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica) Author Soto, Joan J. Author Peña, Álvaro L. text Zootaxa 2019 2019-03-22 4570 1 1 78 journal article 27992 10.11646/zootaxa.4570.1.1 66601a1e-ba16-41b2-b182-0fd80e75ccba 1175-5326 2608527 EF369E98-EBD9-4647-B081-65AD1794A27C Phialella belgicae ( Hartlaub, 1904 ) ( Fig. 7d ) Material examined. ANT XV/3 : 48-27 , several hydrothecae, on E. generale , H. exaggeratum , S. lobata , Sy. anae and Sy. glacialis ; 48-33 , several hydrothecae, on C. hicksoni and O. terranovae ; 48-36 , some hydrothecae, on O. terranovae ; 48-39 , several hydrothecae, on dead octocoral; 48-44 , some hydrothecae, on A. elongatus , Sy. naumovi and bryozoan; 48-50 , numerous hydrothecae, on C. hicksoni , H. secundum , Sc. nana and bryozoan; 48-63 , some hydrothecae, on Staurotheca frigida Peña Cantero, Svoboda & Vervoort, 1997 ; 48-77 , numerous hydrothecae, on H. jaederholmi ; 48-82 , numerous hydrothecae, on B. subrufa , Sy. glacialis and Staurotheca polarsterni Peña Cantero, Svoboda & Vervoort, 1997 ; 48-168 , two hydrothecae, on Sy. weddelli ; 48-220 , numerous hydrothecae and erect stems, up to 2.5 mm high, on C. hicksoni , H. interpolatum , Sc. nana , Sy. exochus and Sy. plectilis ; 48-276 , several hydrothecae, on C. hicksoni , Halecium cf. antarcticum and Sc. nana ; ANT XVII/3 : 111-7 , several hydrothecae, on O. terranovae and Sy. cumberlandicus ; 111-9 , numerous hydrothecae, on A. grandis , E. generale , R. antarcticum and T. longstaffi ; 111-19 , some hydrothecae, on H. interpolatum and Tubularia sp.1; ANT XXI/2 : PS65/39 , some hydrothecae, on Sc. nana , Sy. exochus and polychaete tube, with gonothecae; PS65/121 , few hydrothecae, on Antarctoscyphus spiralis ( Hickson & Gravely, 1907 ) ; PS65/132 , some hydrothecae, on B. subrufa ; PS65/175 , three hydrothecae, on A. elongatus ; PS65/237 , several hydrothecae, on Halecium cf. antarcticum , Sc. nana and Sy. glacialis ; PS65/248 , one hydrotheca, on indeterminate hydrorhiza; PS65/274 , several hydrothecae, on St. nonscripta ; PS65/278 , few hydrothecae, on H. secundum and sponge; PS65/281 , some hydrothecae, on Sy. curvatus ; PS65/292 , several hydrothecae, on dead octocoral and bryozoan; PS65/336 , some hydrothecae, on Staurotheca pachyclada ( Jäderholm, 1904 ) . Ecology and distribution. Species previously reported from the low tide ( Billard 1914, as Campanulina belgicae ) to 779 m depth ( Peña Cantero 2014a ); present material was collected from 62 to 598 m . Probably a Pan- Antarctic species (Peña Cantero et al. 2013).