Dimensions.—Diameter of the outer shell 0.4, inner 0.08; pores of the outer 0.006, bars 0.012; length of the spines 0.1, basal breadth 0.02.
Habitat.—Equatorial Atlantic, Station 348, depth 2450 fathoms.
Subgenus 3. Haliommilla, Haeckel.
Definition.—Pores of the cortical shell irregular, of different size and form; spines covering the entire surface (commonly one spine at each nodal-point).
20. Haliomma capillaceum, Haeckel.
Haliomma capillaceum, Haeckel, 1862, Monogr. d. Radiol., p. 426, Taf. xxiii. fig. 2.
Cortical shell very thin walled, seven to eight times as broad as the medullary shell, both with irregular, polygonal pores, and very thin thread-like bars; outer pores twice to three times as broad as the inner. Radial spines very numerous, straight, bristle-shaped, about as long as the diameter of the medullary shell.
Dimensions.—Diameter of the outer shell 0.2, inner 0.025 to 0.03; outer pores 0.02 to 0.04, inner 0.008 to 0.016, bars 0.001; length of the spines 0.02 to 0.03.
Habitat.—Mediterranean (Messina), Atlantic (Canary Islands), surface.
21. Haliomma erinaceum, Haeckel.