P. kofoidii

Polykrikos kofoidii
A light micrograph of Polykrikos kofoidii showing an extruded . Scale bar = 10µm.
Scientific classification
Domain:	Eukaryota
(unranked):	SAR
(unranked):	Alveolata
Phylum:	Dinoflagellata
Class:	Dinophyceae
Order:	Gymnodiniales
Family:	Polykrikaceae
Genus:	Polykrikos
Species:	P. kofoidii
Binomial name
Polykrikos kofoidii Chatton, 1914

Polykrikos kofoidii is a species of phagotrophic marine pseudocolonial dinoflagellates that can capture and engulf other protist prey, including the toxic dinoflagellate, Alexandrium tamarense.P. kofoidii is of scientific interest due to its status as a predator of other dinoflagellates, a behavior that is significant in the control of algal blooms. It has a complex life cycle of both vegetative (asexual) and sexual reproduction complicated by its pseudocolonial structure.

...
Wikipedia