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:

Similar Genus ->> Trachelophyllum; Ileonema

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).