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Heterotrichea: Heterotrichida: Stentoridae

Stentor amethystinus
Leidy 1880

Stentor amethystinus Species: Body pyriform when contracted; amethyst-blue; with Chlorella; 300-600 μm long; macronucleus oval (Kudo, 1966).
Cell body broadly trumpet shaped, 250-500 μm long when fully extended; cortical granules lilac or amethystine coloured or purplish red, surround also micronuclei; with symbiotic green algae (Foissner and Wölfl, 1994).


Stentor amethystinus (small variety ?), cell body about 120 μm long, an ovoid macronucleus, a contractile vacuole anterior, x 100, x 400, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Stentor amethystinus Stentor amethystinus Stentor amethystinus


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