What are the characteristic features of Euglenoids?

Some characteristic features of Euglenoids are as follows.
 Euglenoids (such as Euglena) are unicellular protists commonly found in fresh water.
 Instead of cell wall, a protein-rich cell membrane known as pellicle is present.
 They bear two flagella on the anterior end of the body.
 A small light sensitive eye spot is present.
 They contain photosynthetic pigments such as chlorophyll and can thus prepare their own food. However, in absence of light, they behave similar to heterotrophs by capturing other small aquatic organisms.
 They have both plant and animal-like features, which makes them difficult to classify.

Most of them live in freshwater habitat in stagnant water. Cell wall is absent in them and instead there is a protein rich layer; called pellicle. The pellicle makes their body flexible. Two flagella; one short and another long; are present. They are photosynthetic; but behave as heterotrophs in the absence of sunlight.

Features of Euglenoids. 

• No cell wall. 
• Protein-rich layer, called pellicle, which makes exible body. 
• Two flagella of different lengths. 
• Autotrophs in sunlight, heterotrophs in the absence of sunlight.

Example: Euglena.