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Litostomatea: Haptoria: Pleurostomatida: Amphileptidae

Amphileptus pleurosigma
(Stokes 1884) Foissner 1984
Syn.: Hemiophrys pleurosigma Stokes, 1884

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:


Amphileptus pleurosigma (Stokes) Foissner, cell body 290 μm long, 65 μm wide, two macronuclei ellipsoidal (slightly tapered at one end), 37 μm long, 15 μm wide, many contractile vacuoles aligned along both dorsal and ventral sides, x 400, x 640, Sayama Natural Park, Higashi-Murayama city, Tokyo, Japan, December 2001 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Amphileptus Amphileptus Amphileptus Amphileptus
scale 31 μm scale 63 μm scale 94 μm; x 640
Amphileptus Amphileptus Amphileptus Amphileptus

Amphileptus sp., cell body 310 μm long, 73 μm wide, two macronuclei ellipsoidal (slightly tapered at one end), 39 μm long, 19 μm wide, many contractile vacuoles aligned along both dorsal and ventral sides, x 200, x 400, x 640, Sayama Natural Park, Higashi-Murayama city, Tokyo, Japan, December 2001 by Y. Tsukii
scale 100 μm scale 200 μm scale 300 μm; x 200
Amphileptus
scale 50 μm scale 100 μm scale 150 μm; x 400
Amphileptus Amphileptus Amphileptus Amphileptus
scale 31 μm scale 63 μm scale 94 μm; x 640
Amphileptus Amphileptus Amphileptus

Amphileptus 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).

Amphileptus 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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