Habitat.—Tropical Atlantic, Station 343, surface.
9. Lychnaspis longissima, n. sp. (Pl. [134], fig. 6).
Parmal meshes circular, very small, of the same breadth as the thick bars, much smaller than the irregular sutural meshes. By-spines (one hundred to one hundred and ten) very long and thin, zigzag, twice as long as the diameter of the shell. Radial main-spines very long and strong, cylindrical (at the base quadrangular, pyramidal), four to six times as long as the diameter of the shell, and one fourth as thick as its radius.
Dimensions.—Diameter of the shell 0.08, parmal pores 0.002, sutural pores 0.01 to 0.015, bars 0.003; length of the radial spines 0.3 to 0.5.
Habitat.—Tropical Pacific (Philippines), Stations 200 to 215, surface.
10. Lychnaspis minima, n. sp. (Pl. [134], figs. 2, 7, 8).
Parmal meshes circular, very small, only half as broad as the thick bars, much smaller than the irregular sutural meshes. By-spines (one hundred to one hundred and ten) half as long as the radius, zigzag. Radial main-spines thick, in the inner part cylindrical, in the outer shorter part conical, of very variable size.
Dimensions.—Diameter of the shell 0.05, parmal pores 0.002, sutural pores 0.006 to 0.012, bars 0.004.
Habitat.—Antarctic Ocean, Station 154, surface.