Abstract
Two new species of the genus Craspedoporus Greville are described from the middle Eocene of the Bermuda Rise. The new species, C.rotaradiatus and C.reticulatus, are compared with the two original species described by Greville, C.ralfsianus and C.johnsonianus. The genus Craspedoporus is defined and comparisons made with the closely related genus Rattrayetta De Toni. The genus Corona is synonymised with Craspedoporus.