Spirotrichea: Heterotrichia: Blepharismidae: BlepharismaBlepharisma americanumSuzuki, 1954 Synonym: B. undulans americanus Suzuki, 1954
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Genus: Elongate, ovoid; anterior apex often curves over the peristome; non contractile (Carey, 1992).
In front of cytostome a two-layered undulating membrane on right edge; contractile vacuole and
cytopyge terminal; rose-colored; many species (Kudo, 1966).
Species: Pink, 115-220 μm long; peristome nearly 1/2 cell length with conspicuous undulating membrane; macronucleus multinodal with 3-7 nodes (moniliform); 6-20 micronuclei (Giese, 1973). 150-300 μm long (How to know the protozoa, 1979). |
Blepharisma americanum, an exconjugant cell with two macronuclear anlage, azure C stained, by Y. Tsukii