Schizotricha glacialis ( Hickson & Gravely, 1907 )

Soto, Joan J. & Peña, Álvaro L., 2019, Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica), Zootaxa 4570 (1), pp. 1-78 : 44

Schizotricha glacialis ( Hickson & Gravely, 1907)

( Fig. 15 b–c)

Material examined. ANT XV/3: 48-353, one colony, c. 90 mm high, with gonothecae.

Ecology and distribution. Rare species, only reported twice: from its type locality in the Ross Sea at a depth of 180 m ( Hickson & Gravely 1907, as Plumularia glacialis ), and from the eastern part of the Weddell Sea, at a depth of 620–640 m (Peña Cantero et al. 1996); present material collected at 129– 132 m. Probably a circum- Antarctic species. Present finding constitutes the third record of the species and the first evidence from the South Shetland Islands.

Figures

FIGURE 15. a Aglaophenia baggins: hydrotheca. b–c Schizotricha glacialis: b forked hydrocladial internode; c unforked hydrocladial internode. d–f Sc. nana: d stem; e forked hydrocladial internode; f unforked hydrocladial internode. g–j Sc. unifurcata: g stem; h forked hydrocladial internode; i unforked hydrocladial internode; j internode with two hydrothecae.