Habitat.—North Pacific, Station 240, surface, Kamtschatka (Bailey).
10. Dictyophimus cortina, n. sp. (Pl. [61], fig. 1).
Shell three-sided pyramidal, with distinct collar stricture. Relative length of the two joints = 1 : 3, breadth = 1 : 4. Cephalis subspherical, with a pyramidal horn of half the length. Thorax with much larger irregular roundish pores and three prominent ribs, which are prolonged into three stout, club-shaped, strongly divergent feet of the same length. Mouth widely open, elegantly coronate, with a circle of numerous small cilia.
Dimensions.—Cephalis 0.02 long, 0.03 broad; thorax 0.06 long, 0.08 broad.
Habitat.—Central Pacific, Station 272, depth 2600 fathoms.
11. Dictyophimus arabicus, Haeckel.
Lychnocanium arabicum, Ehrenberg, 1872, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 296, Taf. x. fig. 3.
Shell smooth, three-sided pyramidal, with deep collar stricture. Relative length of the two joints = 1 : 3, breadth = 1 : 4. Cephalis subspherical, with a slender horn of the same length. Thorax with much larger, irregular roundish pores, and three widely divergent ribs, which are prolonged into three slender, somewhat recurved feet of about the same length.
Dimensions.—Cephalis 0.02 long, 0.02 broad; thorax 0.07 long, 0.09 broad.
Habitat.—Indian Ocean, Zanzibar (Pullen), depth 2200 fathoms.