Ａ flexible flagellate changing its shape

This slender flagellate is 100 microns in length, with a flagellum almost as long at the top. The organism actively moves around swinging its flagellum in front. When it moves in a new direction, the soft, flexible body changes its shape. The rear end of this flagellate is square, unlike the tapered rear end of similar type of flagellates.

Commentary by Prof. Yuji Tsukii, Hosei University
This organism is Peranema belonging to Euglena group. It is probably Peranema trichophorum.

http://protist.i.hosei.ac.jp/PDB/Im.....

Sampling Date : 28 May 2009

Sampling Site : Hirose River B  Google Map