detail

Description:

Colacium (coal-ace-ee-um) is a euglenid flagellate in which the cells are attached to the substrate b y means of a mucoid stalk. the euglenids are attached to the stalks by their anterior region. The individual cells may break free from the stalks and swim away, at which time they are indistinguishable from members of the genus Euglena. detail of two cells showing plastids, region of nuclei, and eyespots (the refractile orange granules in the cells). Phase contrast.