Habitat.—South Atlantic, Station 335, depth 1425 fathoms.
Genus 464. Anthospyris,[[82]] Haeckel, 1881, Prodromus, p. 443.
Definition.—Zygospyrida with numerous (seven to nine or more) basal feet and three coryphal horns.
The genus Anthospyris differs from the preceding Petalospyris, its ancestral form, in the possession of three horns on the coryphal face (one odd middle apical horn and two paired frontal horns, one on each side). The former therefore bears to the latter the same relation that Triceraspyris does to Tripospyris and Liriospyris to Hexaspyris.
1. Anthospyris mammillata, n. sp. (Pl. [87], fig. 16).
Shell nut-shaped, mammillate, with deep sagittal stricture and irregular, polygonal pores. Basal plate with two large ovate pores (?). The pediculate apical horn and the two frontal horns stout and short, conical, twice to three times as large as the conical papillæ of the surface. Feet twelve to fifteen, lanceolate lamellar, pointed, divergent, about as long as the shell.
Dimensions.—Shell 0.05 long, 0.08 broad; horns 0.03, feet 0.04 long.
Habitat.—Central Pacific, Station 272, depth 2600 fathoms.
2. Anthospyris spathulata, n. sp. (Pl. [87], fig. 15).
Shell subspherical, thorny, with slight sagittal stricture and irregular, roundish pores. Basal plate with three large pores. The three horns spindle-shaped, half as long as the ten to twelve thin feet, which are pediculate, shovel-shaped, a little divergent, and shorter than the shell.