Gymnodinium sanguineum syn. Akashiwo sanguinea,  Gymnodinium nelsonii, Gymnodinium splendens 

One of the largest dinoflagellates in the Bay area. Size 49um wide, 63um long, total volume 79201.13. Temp. range 18.48 to 27.57, salinity range 8.9 to 25.0. Collected in Aug. to Oct. from all stations in the Rhode River and throughout mid to southern Chesapeake Bay.

Dinoflagellates