Dimensions.—Length of the entire shell 0.6, breadth 0.2, ring 0.09 long.
Habitat.—Central Pacific, Station 266, depth 2750 fathoms.
3. Lamprospyris huxleyi, n. sp. (Pl. [89], fig. 14).
Shell ovate, spiny, with two slight annular transverse strictures; their length equal to one and a half times the breadth, and up to seven times the length of the ring. Apical horn quite included by the loose lattice-work of the large conical cupola, which is as long as the cephalis and thorax together. The three slender feet are also included in the lattice-work and only one-third as long as the shell, nearly vertical. Lattice-work much denser than in the two preceding species.
Dimensions.—Length of the shell 0.4, breadth 0.26, ring 0.06 long.
Habitat.—Central Pacific, Station 274, depth 2750 fathoms.
4. Lamprospyris hookeri, n. sp.
Shell ovato-conical, very similar to the preceding species, but smooth, not spiny. The apical horn and the three feet are much longer, not included in the network, but freely prominent, half as long as the shell and nearly vertical, parallel. The arachnoidal lattice-work is much denser in the middle third (cephalis) than in the upper third (cupola) of the lower third (thorax).
Dimensions.—Length of the shell (without appendages) 0.45, breadth 0.3, ring 0.08 long.
Habitat.—Central Pacific, Station 270, depth 2925 fathoms.