Peridinium willei
# Peridinium willei

Peridinium willei is a species of Dinoflagellata in the family Peridiniaceae.

It has been called perennial.

It is found in the United $States,^{:784}$ Sweden, Norway, Brazil, and the Netherlands.

P. willei lives in fresh water with one study saying it less likely occurs in lakes above 12 degrees or below 4 degrees.

