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).