Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index / Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

by Ernst Haeckel

2. Cornutanna cyrtoconus, n. sp.

Shell slender, conical, with curved axis; the curve lies in one plane as in the similar Cornutella curvata; the pores are smaller and more numerous than in this latter species, and the rounded apex bears no horn.

Dimensions.—Shell 0.12 to 0.16 long, 0.05 to 0.07 broad.

Habitat.—South Pacific, Station 300, depth 1375 fathoms.

3. Cornutanna loxoconus, n. sp.

Shell wide, conical, with irregularly curved axis; the parts of the curve do not lie in one plane. Pores very small and numerous, of nearly equal size.

Dimensions.—Shell 0.2 long, 0.12 broad.

Habitat.—Tropical Pacific, Station 225, depth 4475 fathoms.

Genus 528. Archicorys,[^[145]] Haeckel, 1881, Prodromus, p. 427.

Definition.—Archicorida with simple urceolate or ovate shell, constricted towards the mouth. Apex armed with a horn.