Euglenoids

Abstract

The small, well-defined group of Euglenophyta (eu = good; glene = socket of a joint: reference to the ability of many members of this group to change shape) contains both green and nonpigmented organisms. Euglenoids are predominantly fresh-water organisms, although a few are marine. They are often abundant in places where there is a large quantity of organic nitrogenous compounds, such as polluted streams, wet barnyards, and the margins of ponds. Although of little economic importance, euglenoids are useful research organisms.