New Record for a Dinoflagellate Species (Gonyaulax pacifica Kofoid) from Turkish Coastal Waters (Northeastern Mediterranean Sea)

The dinoflagellate species Gonyaulax pacifica Kofoid is reported for the first time from northeastern Mediterranean coast of Turkey; it has not previously been reported for any Turkish coastal waters. The morphological characteristics of this species are described in detail and information about its ecological and biogeographical distribution is given.