References

Free Living Fresh Water Protozoa and Colour Guide. Fig 194-197 Amoeba. D.J. Patterson, 1998.

Free Living Fresh Water Protozoa and Colour Guide. Fig 301 Lacrymaria. D.J. Patterson, 1998.

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.