“Isodictya erinacea (Topsent) (Plate VIII, 4 - 7)
Topsent, 1916:169, (Homoeodictya); 1916:169, (Homoeodictya kirkpatricki); 1917:68, pl. III, fig. 1, pl. VI, fig. 15, (Homoeodictya); 1917:70, pl. I, fig. 2, pl. VI, fig. 14, (Homoeodictya kirkpatricki); Brondsted, 1926:2, figs. 1, 2, (Desmacidon doryphora); Burton, 1929:424 (kirkpatricki); 1932:286; 1934:20.
LOCALITIES. St. 44-A, 199, 335, 370, 460; Wilhelm II Coast.
DIAGNOSIS. Body globular, more often cylindrical or dendriform, up to 20 cm high with a maximum thickness of 2.5 cm. There are numerous conules on the surface (which are the continuation of the fibers of the basal skeleton). The conules reach a height of 2 cm. The oscula found on the different parts of the body have a maximum diameter of 4 - 5 mm. Color: light brown. The skeleton is formed of thick arborescent fibers.
Spicules. Macroscleres: oxeas (sometimes with blunt ends, even strongyles) — 0.650 -1.000 mm long and 0.030 - 0.040 mm wide. Microscleres: palmate chelas — 0.053 - 0.071 mm long. Sometimes raphides (trichodragmata) may also be found — 0.065 - 0.080 mm long.
This species differs from I. obliquidens and I. setifer in the form of the chelas.
DISTRIBUTION. Antarctic shores (Wilhelm II Coast, Banzare Coast, Adelie Coast, George V Coast, Oates Coast, Balleny Islands, Victoria Land, Graham Coast, Palmer Archipelago, Elephant [Mordvinov] Islands, Mac-Robertson Coast), Falkland Islands. Depth: 92 - 920 m.”
(Koltun, 1964)
