Shell circular, nearly spherical, slightly compressed. Pharynx funnel-shaped, truncate, conical, its outer opening twice as broad as the inner. Surface smooth.
Dimensions.—Diameter of the shell 0.25 to 0.28, of the inner mouth 0.05.
Habitat.—South Pacific, Station 289, depth 2550 fathoms.
3. Entocannula infundibulum, n. sp. (Pl. [99], fig. 19).
Challengeria bromleyi (partim), John Murray, 1879, in litteris, Narr. Chall. Exp., vol. i. p. 226, pl. A, fig. 5.
Shell ovate, truncate at the mouth, slightly compressed. Pharynx funnel-shaped, its outer aperture two to three times as broad as the inner. Surface smooth.
Dimensions.—Length of the shell 0.22 to 0.28, breadth 0.2 to 0.25; inner mouth 0.04 to 0.08.
Habitat.—South Atlantic, Station 318, depth 2040 fathoms.
4. Entocannula hirsuta, n. sp. (Pl. [99], fig. 20).
Trichogromia hirsuta, Haeckel, 1881, Manuscript.