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Litostomatea: Haptoria: Pleurostomatida: Amphileptidae

 Amphileptus meleagris
Ehrenberg, 1830
Syn.: Hemiophrys Wrzesniowski, 1870

Amphileptus Genus: Flask-shaped; ciliation uniform and complete; slit-like cytostome not reaching the middle of body, without trichocyst-borders; two or more macronuclei (Kudo, 1966). Many contractile vacuoles along both dorsal and ventral edges (Carey, 1992).
Species: Cell body 200-300 μm long (Kahl, 1931).

Amphileptus meleagris, cell body 287 μm long, 19 μm wide, two ellipsoidal macronuclei, 26 μm long, 10 μm wide, trichocysts in the buccal region and also scattered throughout cytoplasm, a single contractile vacuole located at the posterior end, with a lateral row of 8 or more contractile vacuoles, x 200, x 400, Japan, 1997 by Y. Tsukii
scale 100 μm scale 200 μm scale 300 μm; x 200
Amphileptus Amphileptus
scale 50 μm scale 100 μm scale 150 μm; x 400
Amphileptus Amphileptus

* A. lanceolatus Dragesco, 1965): lanceolate in form; 120 μm long; pointed both anteriorly and posteriorly; no elongate neck region; trichocysts in the buccal region and also scattered throughout cytoplasm; mucocysts present; a macronucleus consisting of two spherical bodies with a intercalated micronuleus; a single contractile vacuole with satellite vacuoles (Carey, 1992).

A. inquieta (Biernacka, 1963): 170-200 μm long; with an elongate neck & rounded posterior; a row of four contractile vacuoles present laterally; two large spherical macronuclei (Carey, 1992).

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