Habitat.—Central Pacific, Station 268, depth 2900 fathoms.

4. Cortina furcata, n. sp.

Ring elliptical, with three forked horizontal spines (one on the dorsal and two on the ventral rod). Apical horn and the three divergent feet of equal size, somewhat longer than the ring, slightly curved, in the distal half forked.

Dimensions.—Height of the ring 0.07, breadth 0.05; length of the feet 0.09.

Habitat.—South Atlantic, Station 332, depth 2200 fathoms. Fossil in Barbados.

5. Cortina dendroides, n. sp.

Ring ovate, with six pairs of branched horizontal spines, three on the dorsal and three on the ventral rod. Apical horn very large, arborescent, about as long and as broad as the ring. Feet similar to the horn, also richly branched, of equal size. All the rods and their branches curved, with prominent distorted edges.

Dimensions.—Height of the ring 0.13 to 0.17, breadth 0.1 to 0.12; length of the feet 0.15 to 0.2.

Habitat.—Central Pacific, Stations 266 to 274, depth 2350 to 2925 fathoms.

6. Cortina cervina, n. sp. (Pl. [92], fig. 21).