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

Dimensions.—Shell 0.18 long, 0.15 broad; mouth 0.07 broad.

Habitat.—Tropical Atlantic, Station 347, depth 2250 fathoms.

3. Cyrtocalpis amphora, Haeckel.

Cyrtocalpis amphora, Haeckel, 1862, Monogr. d. Radiol., p. 286, Taf. v. fig. 2.

Shell smooth, urceolate with regular, circular pores of equal size, of about the same breadth as the bars. Mouth with smooth peristome, about half as broad as the shell.

Dimensions.—Shell 0.12 long, 0.08 broad; mouth 0.04 broad.

Habitat.—Cosmopolitan; Mediterranean, Atlantic, Pacific; surface, and at various depths.

4. Cyrtocalpis urna, Stöhr.

Cyrtocalpis urna, Stöhr, 1880, Palæontogr., vol. xxvi. p. 96, Taf. iii. fig. 7.

Shell smooth, urceolate, with subregular, circular pores of different sizes, gradually increasing towards the mouth, of about the same breadth as the bars. Mouth without peristome (?), about half as broad as the shell.