Litostomatea:
Haptoria: Haptorida: Trachelophyllidae
Chaenea sp.
Quennerstedt, 1867
Genus: Body not flattened; no obvious dome; body kineties slightly spiralled;
often contractile (Illustrated Guide, 1985).
elongate or vermiform, circular in cross-section; highly contractile;
cone-like proboscis absent; always elongate; a large contractile vacuole
at posterior end (Carey, 1992).
Species:
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Similar Genus ->> Trachelophyllum;
Ileonema
Chaenea ? (or Rhopalophrya ? or Litonotus ?),
cell body 82 μm long, 17 μm wide,
x 640, drainage ditch, near Midori-no-oka park (under construction), Matsubushi city, Saitama Pref., Japan, February 15, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Chaenea teres (Dujardin, 1841) Kahl, 1930
(Syn. Enchelys stricta Dujardin, 1841; Chaenea elongata Kahl, 1926; Chaenea limicola
Kahl, 1928):
Cell body ovoid or cylindrical, 150 μm long;
kineties longitudinal, not spiral; a distinct snout when fully extended; not especially contractile;
a tail region present; contractile vacuole terminal with satellite vacuoles;
macronucleus comprises a large number of spherical units (Carey, 1992).
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