Habitat.—Tropical Atlantic, Station 347, depth 2250 fathoms.
5. Cladoscenium verticillatum, n. sp.
Shell campanulate, with subregular square pores. Basal plate with nine pores (three larger central and six smaller distal). Columella with three verticils of three ascending lateral branches. Apical horn and the three basal feet of equal size and similar form, four to six times as long as the columella, three-sided prismatic, each with four to five verticils of three lateral branches, which are irregularly ramified and tapering towards the distal end. (Similar to Clathrocorys teuscheri, Pl. [64], fig. 10, but with four free spines, without connecting lattice-wings.)
Dimensions.—Shell 0.07 long, 0.06 broad; horn and feet 0.2 to 0.25 long.
Habitat.—Central Pacific, Station 271, depth 2425 fathoms.
6. Cladoscenium pectinatum, n. sp. (Pl. [98], fig. 2).
Shell subspherical, with irregular roundish pores. Basal plate with three large holes. Columella with two verticils of three ascending lateral branches. Apical horn and the three feet of nearly the same size and form, three to four times as long as the columella, straight, three-sided prismatic, each with five to eight verticils of three simple lateral branches, tapering towards the distal end.
Dimensions.—Shell 0.07 long, 0.08 broad; horn and feet 0.16 to 0.22 long.
Habitat.—South Atlantic, Station 332, depth 2200 fathoms.