Ceratiaceae

First depiction of the dinoflagellate now know as Ceratium fusus by Christian Ehrenberg in 1834 as Peridinium fusus.

From the Bay of Villefranche in December 2013

Ceratium furca from the Bay of Villefranche. Living cell, note that the trailing flagella was rotating.

First depiction of Ceratium furca was by Christian Ehrenberg in 1834 as Perdinium furca. Note the drawing of a rotating flagella.

First described by Paul Gourret in 1883 as Ceratium fusus, var. extensum. now known as Ceratium extensum or Neoceratium extensum

Ceratium extensum (or Neoceratium extensum), the longest Ceratium species. Specimen from the Bay of Villefranche.