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Oligohymenophorea (formerly Nassophorea): Peniculida: Parameciidae

Paramecium caudatum
Ehrenberg, 1838

Genus: Cigar- or foot-shaped; a single macronucleus and 1 to several vesicular or compact microuclei (Kudo, 1966).
Species: 180-300 μm long; a compact micronucleus; two contractile vacuoles (Kudo, 1966). Cylindrical or cigar-shaped; rounded anteriorly, pointed posteriorly; one large compact micronucleus ("caudatum" group) approximately 8 μm diam.; two contractile vacuoles; 170-290 μm long (Wichterman, 1986). Elongate, rounded anteriorly, pointed posteriorly; caudal cilia present; 180-280 μm long; a single macronucleus with a single micronucleus; two contractile vacuoles (Carey, 1992).
Organelles and Endosymbionts
Paramecium caudatum, intact cells
P. caudatum
mac. & mic.
240 x 95 μm
by Y. Tsukii
Paramecium caudatum
P. caudatum
CV pores
mac. & mic.
Kazo
Saitama, 2003
Paramecium caudatum, intact cells
P. caudatum
nucleolus
by Y. Tsukii
Paramecium caudatum, intact cells
P. caudatum
trichocysts, cilia
& mitochondria?
by Y. Tsukii
Paramecium caudatum
P. caudatum
250 x 62 μm
mac. endosymbionts
near Kondo-numa
Tatebayashi
Gunma, 2006
Vegetative cells
Paramecium
P. caudatum
290 x 73 μm
Nishi-Urawa
Saitama, 2003
Paramecium caudatum
P. caudatum
260 x 85 μm
drainage ditch
Kurihashi
Saitama, 2006
Paramecium caudatum
P. caudatum
250 x 72 μm
Gyoda general p.
Gyoda
Saitama, 2006
Paramecium caudatum, intact cells
P. caudatum
241 x 60 μm
217 x 55 μm
by Y. Tsukii
Paramecium caudatum, intact cells
P. caudatum
220 x 57 μm
by H. Horikami
Paramecium caudatum, intact cells
P. caudatum
207 x 54 μm
by Y. Tsukii
Paramecium caudatum, intact cells
P. caudatum
body flattened
260 x 98 μm
by A. Yanagi
Paramecium caudatum, intact cells
P. caudatum
μm
by K. Mikami
Paramecium caudatum
P. caudatum
220 x 70 μm
Furu-tone river
Kasukabe
Saitama, 2004
Paramecium caudatum
P. caudatum
218 x 63 μm
Demaru-nakago
Kawajima
Saitama, 2005
Paramecium
P. caudatum
205 x 57 μm
Kitamoto nature o.p.
Kitamoto
Saitama, 2005
Paramecium caudatum
P. caudatum
200 x 65 μm
Oura central p.
Oura
Gunma, 2006
Paramecium caudatum
P. caudatum
225 x 63 μm
Kami-omino
Kawajima
Saitama, 2006
Paramecium
P. caudatum
180 x 40 μm
Hazama marsh
Ashikaga
Tochigi, 2006
Paramecium caudatum
P. caudatum
222 x 51 μm
Azami-ike 1
Norikura highland
Nagano, 2007
Paramecium
P. caudatum
260 x 120 μm
Yaita-machi
Utsunomiya
Tochigi, 2006
Paramecium
P. caudatum
195 x 45 μm
Takao-sakura p.
Kitamoto
Saitama, 2005
Paramecium
P. caudatum
or P. multi. ?
215 x 45 μm
Akebono marsh
Tsuchiyu-onsen
Fukushima, 2005
Paramecium caudatum
P. caudatum
or P. multi. ?
220 x 60 μm
near Otto-Numa
Tsuchiura
Ibaraki, 2006
Paramecium caudatum
P. caudatum
or P. multi. ?
250 x 62 μm
drainage ditch
Kawagoe
Saitama, 2006

Paramecium caudatum intact cells
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