Habitat.—South Atlantic, Station 318, depth 2040 fathoms.
Subgenus 4. Aulographonium, Haeckel.
Definition.—Terminal branches of the radial tubes armed with numerous lateral denticles, and with terminal spathillæ (or whorls of small radial teeth).
21. Aulographis dentata, n. sp. (Pl. [103], fig. 20).
Radial tubes slender, cylindrical, equally broad, scarcely inflated at the distal end. Terminal branches six to eight, curved, disposed in a corona around a straight central branch, eight to ten times as long as the tube is broad, armed with numerous stout recurved lateral denticles and with a terminal spathilla of five or six recurved teeth.
Dimensions.—Length of the tubes 1.5 to 2.5, breadth 0.03; branches 0.15 to 0.2 long.
Habitat.—North Atlantic, Station 354, depth 1675 fathoms.
22. Aulographis pulvinata, n. sp. (Pl. [103], fig. 26).
Radial tubes club-shaped, straight, gradually thickened towards the distal end, which bears a broad, circular, biconvex cushion. The margin of this cushion bears two alternating verticils of radially divergent, straight, terminal branches, which are twice to three times as long as the tube is broad. Each branch is armed with two opposite lateral rows of numerous small denticles, and bears a terminal spathilla with six to eight recurved radial teeth.
Dimensions.—Length of the tubes 2.0 to 2.4, distal breadth 0.03 to 0.07; branches 0.05 to 0.08 long.