Habitat.—Fossil in Barbados.

2. Botryocella borealis, Haeckel.

Lithobotrys borealis, Ehrenberg, 1872, Abhandl. d. k. Akad. d. Wiss. Berlin, p. 294, Taf. ii. fig. 3.

Cephalis trilobate; occipital lobe ovate, little longer than the two ovate frontal lobes. Thorax about twice as long as the cephalis. Pores very numerous and small.

Dimensions.—Length of the shell 0.08, breadth 0.04.

Habitat.—North Atlantic, Greenland, depth 1000 to 2000 fathoms.

3. Botryocella tricellaris, n. sp.

Cephalis trilobate, with three odd sagittal lobes; the middle or central lobe larger than the anterior frontal and smaller than the posterior occipital lobe. Thorax nearly spherical, about as long as the cephalis. Pores small and scarce.

Dimensions.—Length of the shell 0.08, breadth 0.06.

Habitat.—North Atlantic, Station 353, depth 2965 fathoms.