Staurotheca polarsterni Peña Cantero, Svoboda & Vervoort, 1997

Soto, Joan J. & Peña, Álvaro L., 2019, Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica), Zootaxa 4570 (1), pp. 1-78 : 31

Staurotheca polarsterni Peña Cantero, Svoboda & Vervoort, 1997

( Fig. 9k )

Material examined. ANT XV/3: 48-63, one colony, c. 40 mm high; 48-70, one colony, c. 90 mm high; 48-72, several stems, c. 130 mm high; 48-77, one colony, c. 40 mm high; 48-82, one colony, c. 75 mm high, on stone; 48- 97, numerous stems, up to 110 mm high; 48-150, numerous stems, up to 120 mm high, on gravel, with male gonothecae; 48-154, numerous stems, up to 140 mm high, with female gonothecae; 48-197, numerous stems, up to 100 mm high; ANT XXI/2: PS65/248, several stems, up to 80 mm high; PS65/253, one colony, c. 75 mm high; PS65/265, one colony, c. 130 mm high, with female gonothecae; PS65/274, one colony, c. 85 mm high.

Ecology and distribution. Previously collected at depths between 181 and 1030 m ( Peña Cantero et al. 1997b); present material from 230 to 758 m. Circum-Antarctic species ( Peña Cantero et al. 1997b).

Figures

FIGURE 9. a Staurotheca antarctica: stem showing hydrothecal arrangement. b St. dichotoma: stem showing hydrothecal arrangement; c–d St. frigida: c stem with male gonothecae; d stem with female gonotheca. e St. glomulosa: hydrotheca. f St. nonscripta: stem showing hydrothecal arrangement. g–h St. pachyclada: g stem showing hydrothecal arrangement; h hydrotheca. i–j St. vanhoeffeni: i colony; j stem showing hydrothecal arrangement. k St. polarsterni: stem showing hydrothecal arrangement and female gonothecae.