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.—Length of the tubular spicula 0.4 to 0.5, breadth 0.005 to 0.008.

Habitat.—South Pacific, Station 289, depth 2550 fathoms.

3. Cannorrhaphis lappacea, n. sp.

Tangential tubes spindle-shaped, gradually tapering towards the two pointed ends, densely studded with irregular lateral branches, which are partly simply, partly forked, more or less curved, and arise obliquely from their surface.

Dimensions.—Length of the tubular spicula 0.2 to 0.3, breadth 0.015 to 0.025.

Habitat.—Central Pacific, Station 271, surface.

4. Cannorrhaphis spathillata, n. sp. (Pl. [101], fig. 5).

Tangential tubes cylindrical, thin and straight, regularly zigzag, with pointed, regularly alternating lateral spines, with an elegant spathilla, or a cap-shaped verticil of eight to ten recurved spines on the two ends.

Dimensions.—Length of the tubular spicula 0.3, breadth 0.003.

Habitat.—Indian Ocean, Cocos Islands (Rabbe), surface.