Sources

1)Lee J. John. Illustrated Guide to the Protozoa. Lawrence, KS: Allen Press Inc., 1985. pg 203

2) Patterson, D.J. Free-Living Freshwater Protozoa: A Color Guide. New York, NY: Wolfe Publishing, 1992. pgs 125, 133, 91, 98, 158.


3) Russel J. Bruce, Rainis G. Kenneth. Guide to Microlife. Scholastic Library Publishing, 1996. pgs 92, 124.