Travel of amoeba

An amoeba extends a number of fine pseudopods and moves very slowly. Here its movements is sped up to 10 times the normal speed, so it appears to be moving quickly. A large particle attached to the back of the amoeba is being dragged along by the organism. When it arrives at the surface of an aggregate, the amoeba squeezes its flexible body through a narrow opening, leaving the particle behind.

Commentary by Prof. Yuji Tsukii, Hosei University
This amoeba is Vexillifera or closely-related organism.

Its method of locomotion is similar to that of Mayorella, but unlike Mayorella, this organism extends many narrow pseudopodia (Dactylopodia) forward.

This Vexillifera is quite large.

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

Sampling Date : 03 July 2009

Sampling Site : Hirose River B  Google Map