They are usually horn-shaped, and reach lengths of two millimeters; as such, they are among the largest known extant unicellular organisms.

Stentor is remarkable for its regenerative powers; a small fragment less than one-hundredth of the volume of an adult can grow back into a complete organism.

Although Stentor protists are unicellular, the Stentor cell structure that comprises them can carry out all processes necessary for life. A couple of Stentor ...

Stentor coeruleus is an astoundingly large (~1 mm long) single celled pond organism with a distinct trumpet shape and a well-defined morphology.

They are usually horn-shaped, and reaching lengths of 2 millimeters, they are among the biggest known unicellular organisms. Stentor. "Stentor roeselii".