Dimensions.—Shell 0.05 long, 0.08 broad; horns 0.03 to 0.05 long, feet 0.08 long.
Habitat.—Mediterranean (Messina), Atlantic, Station 354, surface.
5. Anthospyris aculeata, n. sp. (Pl. [86], fig. 5).
Shell campanulate, spiny, with deep sagittal stricture and irregular, roundish pores. On each side of the stricture three pairs of larger annular pores. Basal plate with two large square pores. The three horns of the same size as, and similar form to, the ten to fifteen feet, slender pyramidal, straight, divergent, about half as long as the shell. (This species is very variable and closely allied to Ceratospyris.)
Dimensions.—Shell diameter 0.08 to 0.12; horns and feet 0.04 to 0.06 long.
Habitat.—Central Pacific, Stations 266 to 274, surface.
6. Anthospyris doronicum, n. sp. (Pl. [87], fig. 18).
Shell nut-shaped, spiny, with a deep sagittal stricture and small circular pores. On each side of the stricture two pairs of very large square annular pores. Basal plate with four larger collar pores and a corona of numerous small peripheral pores. Three horns spindle-shaped, divergent, about half as long as the shell. Feet twenty-five to thirty, broad, lamellar, lanceolate, pointed, divergent, nearly as long as the shell.
Dimensions.—Shell 0.1 long, 0.13 broad; horns 0.06, feet 0.09 long.
Habitat.—South Pacific, Station 296, depth 1825 fathoms.