Pfiesteria is a toxic dinoflagellate (a type of unicellular marine alga) which sometimes causes massive fish kills. It is related to the "red tide" organisms. Paul M. > ---------- > From: Carol B. Simpson > Reply To: Conchologists of America List > Sent: 25, January 2001 4:14 PM > To: [log in to unmask] > Subject: fisteria? > > Has anyone ever heard of a disease called fisteria? This is shell related > > because it comes from the ocean and other waters. > > Carol >