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

orthogona, [598].

scyllæa, [598].

triangularis, [578].

Spongocyclida, [573].

Spongocyrtis, [1188].

arachnoides, [1189].

montis ovis, [1189].

Spongodictyon, [90].

arcadophoron, [91].

cavernosum, [91].