Habitat.—Indian Ocean, Madagascar, Rabbe, surface.
5. Spongocore pupula, n. sp.
Spongy shell cylindrical, without the veil six times as long as broad, three-jointed, with two annular strictures; the middle joint half as long as either terminal joint. Only the middle joint enveloped by a thin veil with spiny surface, connected with it by twenty to thirty radial beams, which are prolonged on the outside into short radial spines. Breadth of the spongy cylinder about equal to its distance from the veil.
Dimensions.—Length of the shell 0.2, breadth (with veil) 0.1; distance of the veil 0.033.
Habitat.—North Pacific, Station 244, surface.
6. Spongocore puella, n. sp. (Pl. [48], fig. 6).
Spongy shell cylindrical, without the veil five times as long as broad, three-jointed, with two annular strictures; the middle joint twice as long as either terminal joint. Only the middle joint enveloped by a thin veil with delicate lattice-work and smooth surface; both terminal joints armed with numerous thin, bristle-shaped, radial spines. Breadth of the spongy cylinder twice as large as the distance from the veil.
Dimensions.—Length of the shell 0.25 to 0.3, breadth (with veil) 0.1 to 0.12; distance of the veil 0.028 to 0.032.
Habitat.—South Pacific, Stations 295 to 304, surface.