Scientific Name: Euglena spp.
Distinguishing Characteristics:
- Unicellular organism that has characteristics of both plant and animal.
- One form of life cycle has a flagella and is motile; the encysted, non-motile form is what is usually found on the surface of ponds.
- Forms a rusty brown or green skim on surface depending on sunlight absorption.
- Often found in ponds that receive nutrients from organic wastes.