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Spirotrichea: Hypotrichia: Euplotida: Aspidiscidae

Aspidisca aculeata
(Ehrenberg, 1838) Kahl, 1930-5

Aspidisca Genus: Ovoid, firm; dorsal side convex, ventral side flattened; dorsal surface ridged; adoral zone reduced or rudimentary; macronucleus U-shaped or in two rounded parts (Kudo, 1966).
Species: Ovoid, 50 μm long; dorsal surface with four ribs, the second from left of which carries a sharp backwardly curving thorn; 7 frontoventral, 5-6 transverse cirri; macronucleus horseshoe-shaped (Carey, 1992).

Aspidisca sp. (aculeata ?), dorsal surface is ridged, cell body 50 μm long, x 200 & x 400, Japan, 1997 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Aspidisca aculeata Aspidisca aculeata Aspidisca aculeata
Aspidisca sp.1', x 200, stained with azure C (right), by Y. Tsukii
Aspidisca aculeata Aspidisca aculeata

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