Peridinium willei

Peridinium willei is a species of Dinoflagellata in the family Peridiniaceae.^[1] It has been called perennial.^[2]

Peridinium willei
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Alveolata
Phylum:	Dinoflagellata
Class:	Dinophyceae
Order:	Peridiniales
Family:	Peridiniaceae
Genus:	Peridinium
Species:	P. willei
Binomial name
Peridinium willei Huitfeldt-Kaas

It is found in the United States,^[3]: 784 Sweden, Norway, Brazil, and the Netherlands.^[1] P. willei lives in fresh water^[4] with one study saying it less likely occurs in lakes above 12 degrees or below 4 degrees.^[2]