Dimensions.—Breadth of shell 0.22, height 0.14.
Habitat.—Pacific, central area, Station 266, depth 2750 fathoms.
4. Streblonia bulimina, n. sp.
Shell nearly egg-shaped, thick walled, clustered, with fourteen to eighteen egg-shaped chambers of rapidly increasing size, the tenth chamber about eight times as broad as the first. Breadth of the shell about two-thirds of the height. Pores irregular, roundish, half as broad as the bars; about twelve on the breadth of the tenth chamber. (Resembles closely Bulimina.)
Dimensions.—Breadth of the shell 0.17, height 0.24.
Habitat.—Pacific, central area, Station 268, depth 2900 fathoms.
5. Streblonia rosalina, n. sp.
Shell top-shaped or flatly conical, with twelve to sixteen chambers of gradually increasing size, the tenth chamber about four times as broad as the first. Breadth of the shell twice as large as the height. Pores subregular, circular, very small, of the same breadth as the bars; about twelve on the breadth of the tenth chamber. (Resembles some forms of Rosalina.)
Dimensions.—Breadth of the shell 0.27, height 0.13.
Habitat.—Pacific, central area, Station 271, depth 2425 fathoms.