Any of various minute single-celled freshwater organisms of the genus Euglena,characterized by the presence of chlorophyll,a reddish eyespot,and a single anterior flagellum.

• 眼虫藻，裸藻一种眼虫属的各种微小单细胞淡水微生物，该属的特点是存在叶绿素、红眼点和单一的前部鞭毛。