image_list image_listE

Euglenophyceae: Euglenales
Mastigophora: Euglenida

Phacus pyrum
(Ehrenberg) F. Stein 1878
= Monomorphina aenigmatica (Dreźepolski) Nudelman et Triemer emend. Kosmaa et Zakryś 2007 or
= Monomorphina pseudopyrum Kosmala, Milanowski, BrzÓska, Pękala, Kwiatowski et Zakryś 2007 or
= Monomorphina pyrum (Ehrenberg) Mereschkowsky emend. Kosmala et Zakryś 2007
(Ciugulea I. & Triemer R.E., A Color Atlas of Phtosyntetic Euglenoids, Michigan State University Press, 2010)

Genus: Highly flattened; pellicle firm; body form constant (Kudo, 1966). Chloroplasts small, discoid, pyrenoids usually absent; most species flat and leaf-shaped; often with ridges or fins running helically or longitudinally (Illustrated Guide, 1985).
Species: About 30-50 μm long, 10-20 μm wide; circular in cross section; with caudal prolongation; pelicle obliquely ridged; flagellum as long as the body (Kudo, 19660). Cell body 28-55 μm long, 10-21 μm wide, two paramylons thick disc-shaped, parietal (An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
Google Image Search
Phacus pyrum
P. pyrum
50 x 17 μm
Tonbo-no-numa
Isumi
Chiba, 2007
Phacus pyrum
P. pyrum
48 x 20 μm
water reservoir
near Yamaguchi Univ.
Yamaguchi, 2004
Phacus pyrum
P. pyrum
45 x 18 μm
Furu-tone river
Kasukabe
Saitama, 2004
Phacus pyrum
P. pyrum ?
or P. trypanon ?
43 x 17 μm
Izumi 741
Namegawa
Saitama, 2004
Phacus pyrum
P. pyrum
42 x 18 μm
Akao
Sakado
Saitama, 2004
Phacus pyrum
P. pyrum
42 μm
tail 17 μm
Naruto
Chiba, 2003
Phacus pyrum
P. pyrum
flat body
41 x 20 μm
Akigase Park
Saitama, 2002
Phacus
P. pyrum
40 x 17 μm
Japan, 1998
Movies
Phacus pyrum
P. pyrum
40 μm
tail 15 μm
Hazama marsh
Ashikaga
Tochigi, 2003
Phacus pyrum
P. pyrum
40 x 14 μm
Kashiwa v.m.p.
Kashiwa
Chiba, 2008
Phacus pyrum
P. pyrum
38 x 15 μm
Sakitama-kofun p.
Gyoda
Saitama, 2004
Phacus pyrum
P. pyrum
38 x 13 μm
Imori pond
Myoko highland
Niigata, 2004
Phacus pyrum
P. pyrum
37 x 16 μm
Shiba river
near Owada Park
Saitama, 2005
Phacus pyrum
P. pyrum
35 x 16 μm
Chiba, 2001
Phacus pyrum
P. pyrum
35 x 15 μm
Higashi-sano
Hakuba
Nagano, 2004
Phacus pyrum
P. pyrum
35 μm
tail 13 μm
Kodama
Saitama, 2003
Phacus pyrum
P. pyrum
flat body
35 x 17 μm
kenko-fukushi m.p.
Koshigaya
Saitama, 2005
Phacus pyrum
P. pyrum
flat body
33 x 14 μm
Higashi-sano
Hakuba
Nagano, 2004
Phacus pyrum
P. pyrum
32 μm
tail 10 μm
Senjo-ga-hara
Nikko
Tochigi, 2003
Phacus pyrum
P. pyrum
31 x 14 μm
Shiba river
near Owada Park
Saitama, 2005
Phacus pyrum
P. pyrum
30 x 18 μm
Mihashi Park
Saitama, 2002
Phacus
P. pyrum
20 x 12 μm
Mihashi Park
Saitama, 2006
Phacus
P. pyrum
or P. trypanon ?
flat body
29 x 13 μm
Saitama, 1999
Phacus pyrum
P. pyrum
23 x 12 μm
tail 10 μm
Tsuchiura
Ibaraki, 2002
Phacus pyrum
P. pyrum
40 x 17 μm
Tane-ike
Togakushi highland
Nagano, 2005
Phacus pyrum
P. pyrum
39 x 15 μm
Hanyu-Suigo p.
Hanyu
Saitama, 2006
Phacus pyrum
P. pyrum
38 x 15 μm
Hasu-ike
Mizumoto
Tokyo, 2006
Phacus pyrum
P. pyrum
41 x 17 μm
35 x 15 μm
Jionji-shinsui p.
Iwatsuki-ku
Saitama, 2006
Phacus pyrum
P. pyrum
33 x 21 μm
Kibagata p.
Komatsu
Ishikawa, 2007
Phacus pyrum
P. pyrum
or P. trypanon ?
33 μm
tail 9 μm
Shishizuka
Tsuchiura
Ibaraki, 2003
Similar species -->> P. trypanon;

Please click on species name for more images.
Phacus pyrum
Copyright Protist Information Server