2. Phatnaspis ensiformis, n. sp.
Parmal pores irregular quadrangular, of unequal size and form, six to eight on each side of the primary diagonal rib, which arises from both flat sides of the two-edged spines; two primary aspinal pores opposite on the two edges of the latter. Spines very broad, strongly compressed, sword-like, their outer half larger than the inner.
Dimensions.—Length of the shell 0.16, breadth 0.11; basal breadth of the spines 0.02.
Habitat.—Tropical Atlantic, Station 348, surface.
3. Phatnaspis loculata, n. sp.
Parmal pores regular quadrangular, of nearly equal size and form, twelve to sixteen on each side of the primary diagonal rib, which arises from both flat sides of the two-edged spines; two primary aspinal pores on the two edges of the latter. Spines linear, compressed, very long and thin, their outer half three to four times as long as the inner.
Dimensions.—Length of the shell 0.24, breadth 0.18; breadth of the spines 0.004.
Habitat.—North Atlantic, Station 354, surface.
4. Phatnaspis fenestrata, Haeckel.
Haliommatidium fenestratum, Haeckel, 1862, Monogr. d. Radiol., p. 421.