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

abnorme, [710].

deforme, [710].

pylonium, [709].

spironium, [709].

Phortolarcus, [710].

Phortopyle, [709].

Phractacantha, [755].

bifurca, [755].

bipennis, [755].

Phractacanthida, [753].