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

mucronatum, [756].

Astractinium, [476].

Astractura, [476].

aristotelis, [476].

clavigera, [476].

democriti, [477].

hippocratis, [477].

ordinata, [476].

Astracturida, [469].

Astracturium, [476].