image_list image_listE

Euglenophyceae: Euglenales
Euglenida:

Astasia klebsi

Astasia Genus: Only 1 flagellum emergent from canal, colourless; eyespot absent; cell body fusiform or elongated, plastic, with pronounced euglenoid movement; many species, mostly freshwater (Illustrated Guide, 1985).
Species:
Simiar species -->> A. lagenula;


Astasia klebsi, cell body 43 μm long, 13 μm wide, a nucleus located posteriorly, x 100, x 200, x 400, x 640, Yagiri, Ichikawa city, Chiba Pref., Japan, September 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Astasia klebsi Astasia klebsi Astasia klebsi Astasia klebsi
x 640
Astasia klebsi Astasia klebsi Astasia klebsi Astasia klebsi
Astasia klebsi Astasia klebsi Astasia klebsi Astasia klebsi

Astasia longa Pringsheim, 1936: Cell body spindle in shape, posterior end slightly pointed, 55-60 μm long, 8 μm wide (fixed sample); a locomotive flagellum 1/3 0 1/2 of the cell body in length; paramylon bodies bar-shaped or ellipsoidal, small (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000). Cell body 70-96 μm long, 10-14 μm wide, two large paramylon bodies ring-shaped (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000). Outline shape similar to that of Euglena gracilis (How to know the protozoa, 1979).

Astasia lagenula Schewiakoff: Cell body cylindroid with posterior end rounded, 45 μm long, 10 μm wide; a flagellum more or less longer than the body length; ovoidal paramylum granules (WPRNO).

Astasia klebsi :

Astasia dangeardi : Outline shape similar to that of Euglena rostrata (How to know the protozoa, 1979).

Astasia captiva :


Please click on images for viewing enlarged.
Copyright Protist Information Server