Encountering of two different amoebae I

Here a large amoeba is actively hunting and catching food one by one. After a while, a different amoeba appears in our field.

Commentary by Prof. Yuji Tsukii, Hosei University
The first amoebae to appear may be Vexillifera or a floating Vannella.

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

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

Amoebae appearing later may be Diaphoropodon, which is in a shell covered with black particles.

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

Diaphoropodon is characterized by fine spiny projections on the surface of its shell, but to see these projections clearly require higher magnification and resolution.

Sampling Date : 09 August 2009

Sampling Site : Hirose River B  Google Map