Habitat.—Tropical Atlantic, Station 347, depth 2250 fathoms.
14. Tripospyris eucolpos, n. sp. (Pl. [84], fig. 4).
Shell thorax-shaped, smooth, with two vaulted bosoms, separated by a deep sagittal stricture and an internal primary ring. Basal plate constricted, with three pairs of collar pores. The other lattice-work with subregular circular pores. Apical horn and the three feet shorter than the shell, straight, divergent; their inner half thinner, cylindrical, smooth, their outer half an ovate dimpled cone.
Dimensions.—Shell 0.1 long, 0.13 broad; horn and feet 0.06 long.
Habitat.—Indian Ocean, Cocos Islands (Rabbe), surface.
15. Tripospyris tribrachiata, Haeckel.
Cladospyris tribrachiata, Ehrenberg, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 68, Taf. xxi. fig. 8.
Shell subspherical, smooth, with slight sagittal stricture and numerous, very small circular pores. Basal plate with numerous small pores. Apical horn and the three divergent feet very large and stout, straight, three-sided prismatic, with dentate edges, two to three times as long as the shell.
Dimensions.—Shell diameter 0.05; horn and feet 0.1 to 0.15 long.
Habitat.—Fossil in Barbados.