Spirotrichea:
Hypotrichia: Euplotida: Euplotidae
Euplotes eurystomus
(Wrzesniowski, 1870) Kahl, 1930-5
Genus: Cell body is ovoid, dorsoventrally flattened; dorsal surface may be equipped with some ornamentation;
three groups of cirri (frontoventral, transverse & caudal); macronucleus C-shaped, "3"-shaped, or
horsehoe-shaped (Carey, 1992).
Species: Large, ovoid; 160 μm long;
peristomial collar present (high & prominent), right peristomial lip with depression;
no ornamentations; wide buccal area wide, triangular in shape; peristome 1/2 of the body
length; 9 frontoventral, 5 transverse, 4 caudal cirri; macronucleus "3"-shaped
(Carey, 1992).
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Euplotes eurystomus, a conjugating pair,
cell body μm long, μm wide,
x 400, Japan, 99? by Y. Tsukii
50 μm
100 μm
150 μm; x 400
Euplotes eurystomus, conjugating pairs and an exconjugant (right)
double-stained with azure C & fastgreen,
cell body μm long, μm wide,
x 400, Japan, 199? by Y. Tsukii
Euplotes eurystomus, conjugation ?,
cell body μm long, μm wide,
x 400, Japan, 199? by Y. Tsukii
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