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Nassophorea: Nassulida: Nassulina: Nassulidae

Nassula
Ehrenberg, 1833

Order: Hypostomial frange not extensive (Carey, 1992). Medium to large, some >100 μm long; oral polykinetids only next to left rear of cytostome; large cyrtos has complete palisade of nematodesmata (Illustrated Guide, 1985).
Suborder: With few to many "oral" polykinetids as frange from post oral region sidewise to left, sometimes onto dorsum (Illustrated Guide, 1985). Body usually large and cylindrical with simple holotrichous ciliation (Carey, 1992).
Family: Body ellipsoidal, uniformly ciliated; hypostomial frange short; prominent cytopharyngeal apparatus (Carey, 1992).

Genus: Oral aperture small, oval (Carey, 1992).
->> Description at WPRNO Google Image Search
Cell body sausage-shaped; many contractile vacuoles
Nassula elegans
N. elegans
400 x 120 μm
L/W= 3.3
cyrtos 25 μm φ
8 or more c.v.
trichocysts absent
near Ukima Park
Tokyo, 2001
Nassula
N. elegans
240 μm
L/W=
cyrtos μm φ
6 or more c.v.
trichocysts absent
Hasuda
Saitama, 2002
Nassula elegans
N. elegans
204 x 84 μm
L/W=2.4
cyrtos μm φ
trichocysts absent
Furu-tone river
Kasukabe
Saitama, 2004
Nassula
N. elegans
177 x 71 μm
L/W=2.5
cyrtos μm φ
trichocysts absent
Kurome river
Asaka
Saitama, 2006
Nassula
N. elegans
185 μm
L/W=
cyrtos μm φ
3 or more c.v.
trichocysts absent
Mihashi Park
Saitama, 2002
Nassula
N. elegans
180 x μm
L/W=
cyrtos μm φ
3 or more c.v.
trichocysts absent
Inari Park
Toyama, 2002
Nassula
N. elegans ?
ingestion of food
L/W=
cyrtos μm φ
3 or more c.v.
trichocysts absent
Inari Park
Toyama, 2002
Cell body more than 100 μm long
Trichocysts absent
Nassula
N. aurea ?
400 x 190 μm
L/W= 2.1
cyrtos μm φ
Muneoka
Shiki
Saitama, 2004
Nassula
N. aurea
237 x 125 μm
L/W= 1.9
cyrtos 25 μm φ
trichocysts absent
Saitama, 2000
Nassula
N. aurea
275 x 180 μm
L/W= 1.5
cyrtos 24 μm φ
trichocysts absent
Kuroiso
Tochigi, 1999
Nassula
N. aurea ?
203 x 115 μm
L/W= 1.8
cyrtos 12 μm φ
trichocysts absent
Saitama, 2001
Nassula
N. aurea ?
147 x 76 μm
L/W= 1.9
cyrtos 12 μm φ
trichocysts absent
Urawa
Saitama, 2001
Nassula
N. aurea ?
155 x μm
L/W=
cyrtos 12 μm φ
trichocysts absent
Kawashima
or Kawajima
Saitama, 2002
Nassula
N. terminalis
185 x 94 μm
L/W= 2.0
cyrtos 19 μm φ
trichocysts absent
Tochigi, 2001
Nassula
Nassula sp.
138 x μm
L/W=
cyrtos μm φ
Nan-ko
Shirakawa
Fukushima, 2003
Trichocysts present
Nassula
Nassula sp.
310 x 256 μm
L/W= 1.2
cyrtos ellipsoidal 34 μm
trich. rare, 12-13 μm
Koaze river
Saitama, 2002
Nassula
N. ornata ?
260 x 200 μm
L/W= 1.3
cyrtos 25 μm φ
trich. rare, 17 μm
Sashi-ohgi
Saitama, 2002
Nassula
N. ornata ?
203 x 150 μm
L/W= 1.4
trich. rare μm
Komae
Tokyo, 2004
Nassula
N. ornata
130 x 100 μm
150 x 123 μm
L/W= 1.2-1.3
cyrtos 18 μm φ
trich. many, 6 μm
Tochigi, 2001
Nassula
N. ornata
175 x μm
L/W=
cyrtos 18 μm φ
trich. many, 9 μm
Otto-Numa
Ibaraki, 2002
Nassula
N. ornata
330 x 310 μm
L/W=
cyrtos 18 μm φ
trich. many, 9 μm
Riverside green l.
Sawara
Chiba, 2004
Nassula
Nassula sp.
166 x μm
L/W=
cyrtos 26 μm φ
trich. many, 4-5 μm
Higashi-Matsuyama
Saitama, 2001
Nassula
Nassula sp.
113 x 79 μm
L/W= 1.4
cyrtos 26 μm φ
trich. many, 4-5 μm
Tatebayashi
Gunma, 2001
Nassula labiata
Nassula sp.
180 x μm
L/W=
cyrtos 25 μm φ
trich. many?, 8 μm
Konosu
Saitama, 2003
Nassula
Nassula sp.
154 x 100 μm
L/W= 1.5
cyrtos 26 μm φ
trich. rare, 9 μm
Akigase park
Saitama, 1998
Nassula
Nassula sp.3
144 μm
L/W= ??
cyrtos 10 μm φ
trich. many 5-6 μm
Asaka
Saitama, 2000
Nassula
Nassula sp.
135 x 90 μm
L/W= 1.5
cyrtos μm φ
trich. many μm
Yoshimi
Saitama, 2003
Nassula
Nassula sp.
183 x μm
L/W=
cyrtos μm φ
O-ike park
Yabuki
Fukushima, 2003
Nassula
Nassula sp.
104 x 78 μm
L/W=
cyrtos μm φ
trich. rare, 9 μm
Yanase river
Fujimi
Saitama, 2004
Cell body less than 100 μm long
Trichocysts absent
Nassula
Nassula sp.
90 μm
L/W=
cyrtos μm φ
trichocysts absent
Kanazawa
Ishikawa, 2003
Nassula
N. parva ?
87 μm
L/W= 1.9
cyrtos 15 μm φ
trichocysts absent
Saitama, 2001
Nassula
N. parva
78 x 45 μm
L/W= 1.7
cyrtos 15 μm φ
trichocysts absent
Higashi-hiroshima
Hiroshima, 1998
Nassula
N. parva ?
78 x 35 μm
L/W= 2.2
cyrtos 12 μm φ
trichocysts absent
Ibaraki, 2000
Nassula
N. citrea ?
80 x μm
L/W=
cyrtos μm φ
trichocysts absent
Higashi-Matsuyama
Saitama, 2001
Nassula
N. citrea ?
70 μm
L/W= 2
cyrtos 6 μm φ
trichocysts absent ?
Kawagoe
Saitama, 2001
Nassula
Nassula sp.
66 x 43 μm
L/W= 1.4
cyrtos 8 μm φ
trichocysts absent
Urawa
Saitama, 2001
Nassula
Nassula sp.
move on a filament
trichocysts absent
Urawa
Saitama, 2001
Nassula
Nassula sp.
ingestion of food
trichocysts absent
Urawa
Saitama, 2001
Nassula
Nassula sp.
cysts
trichocysts absent
Urawa
Saitama, 2001
Nassula
Nassula sp.
55 x 27 μm
L/W= 2.0
cyrtos 8 μm φ
trichocysts absent
Saitama, 1999
Nassula
Nassula sp.
47 x 22 μm
L/W=
cyrtos 8 μm φ
trichocysts absent
Ishibashi
Tochigi, 2004
Nassula
Nassula sp.
41 x 32 μm
L/W= 1.3
cyrtos 10 μm φ
trichocysts absent ?
Saitama, 1999
Nassula
Nassula sp. ?
80 x 50 μm
L/W= 1.6
kenko-fukushi m.p.
Koshigaya
Saitama, 2005
Trichocysts present
Nassula
Nassula sp.
78 x 41 μm
L/W= 1.9
cyrtos 8 μm φ
trich. 5 μm
Sayama
Saitama, 2001
Nassula
N. rubens ?
85 x 52 μm
L/W= 1.6
cyrtos μm φ
Todoroki g.l.
Kawasaki
Kanawaga, 2004
Nassula
N. rubens ?
85 x 44 μm
L/W= 1.9
cyrtos 9 μm φ
trich. many, μm
Tochigi, 2001
Nassula
N. rubens ?
47 x 23 μm
L/W= 2.0
cyrtos 6 μm φ
trich. many, 4 μm
Hanazono
Saitama, 2001
Nassula
N. rubens ?
48 x 20 μm
L/W= 2.4
cyrtos 8 μm φ
Obihiro-Hasshonochi
Obihiro
Hokkaido, 2005
Nassula
N. rubens ?
55 x μm
L/W=
cyrtos 7 μm φ
trich. many, 4 μm
Ogose town
Saitama, 2003
???
Nassula
Nassula sp.
or Paranassula ?
267 μm
L/W=
cyrtos μm φ
Kurihashi
Saitama, 2001
Nassula
Nassula sp.
cysts
μm
Kamiya Park
Konosu
Saitama, 2003

Similar species --> Paranassula

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Nassula
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