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Litostomatea: Haptoria: Pleurostomatida: Litonotidae

 Litonotus cygnus
(O. F. Muller), 1776? ; (Wrzesnioski, 1870) Kahl, 1931
Syn.: Lionotus cygnus

Litonotus cygnus Genus: Flask-shaped; elongate, flattened; anterior region neck-like; cilia only on right side; without trichocyst-borders; cytostome with trichocysts; two macronuclei (Kudo, 1966).
Species: Long, thin and contractile; cell body is 200 μm long with a very long and thin neck region and pointed tail; laterally compressed; two macronuclei; a large contractile vacuole with small satellites (Carey, 1992). 500 μm long (Kahl, 1931).
Similar Genus ->> Loxophyllum; Amphileptus

Litonotus cygnus, cell body 310 μm (extended), highly contractile, a long and thin neck region, pointed tail, two macronuclei, a large contractile vacuole posterior, x 100, x 200, x 400, x 640, Saitama Pref. Japan, 2000, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Litonotus cygnus Litonotus cygnus Litonotus cygnus Litonotus cygnus Litonotus cygnus Litonotus cygnus

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