Habitat.—South Pacific, Station 302, surface.
Subgenus 2. Spongocorisca, Haeckel.
Definition.—Shell distinctly three-jointed, with two transverse annular strictures.
3. Spongocore chrysalis, n. sp.
Spongy shell cylindrical, without the veil six times as long as broad, three-jointed, with two annular strictures; all three joints of the same length. The whole spongy shell enveloped by a thin veil with thorny surface, connected with it by numerous radial beams. Breadth of the spongy cylinder three times as large as its distance from the veil.
Dimensions.—Length of the shell (with veil) 0.4, breadth 0.1; distance of the veil from the spongy shell 0.02.
Habitat.—South Atlantic (off Patagonia), Station 318, surface.
4. Spongocore cincta, n. sp.
Spongy shell cylindrical, without the veil four times as long as broad, three-jointed, with two annular strictures; all three joints of the same length. Only the middle joint enveloped by a thin veil with smooth surface, connected with it by radial beams. Both terminal joints with long, bristle-shaped, radial spines. Breadth of the spongy cylinder twice as large as its distance from the veil.
Dimensions.—Length of the shell 0.24, breadth (with veil) 0.12; distance of the veil 0.03.