Syracosphaera nodosa

In this specimen, the wheel-like exothecal coccoliths (in green) have fallen off and are lying on the filter. Again, the inner coccoliths (in pink) show spine-like protrusions around the flagellar pole.

Details: Specimen from the Alboran Sea, western Mediterranean (R/V Hesperides cruise Mater II, station 61).
Filename: 120-29.jpg