Dinophysis ovum is a species of toxic dinoflagellates suspected to cause diarrhetic shellfish poisoning in humans.

Further reading

Harred, Laura (July 2014). "Predicting harmful algal blooms: a case study with Dinophysis ovum in the Gulf of Mexico". Journal of Plankton Research. 36 (6): 1434–1445. doi:10.1093/plankt/fbu070. hdl:1969.1/152710.