Figure 52
Species of the genus Ceratocyrtis.
I) C. cucullaris, Middle Miocene, DODO 41P; II-IV) C. histricosa typ., surface sediment, Norwegian Sea, “Sevastopol” station 1703: II) from below; III) posteriorly; IV) left; V-VII) C. histricosa forma A, similar to Lithopera (?) setosa Ehr., 1854, plankton; V) Indian Ocean, “Vityaz”, station 5283; VI) Pacific Ocean “Vityaz” station 3518; VII) Caribbean Sea, “Kovalevskij” station 191.
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