Spirotrichea: Oligotrichia: Oligotrichida: Halteriidae

by Kihara, Akira ( Hosei University)

Family & Genus: Circumferential paratene (cirrus-like "bristles") usually polykinetid; body small, rounded (Illustrated Guide, 1985).
Genus: Spherical or broadly fusiform; anterior border bears conspicuous adoral zone (Kudo, 1966). Body circular or globular; AZM is composed of two sets membranelles; longer set emerges from the buccal cavity and wind around the apex of the cell; long, stiff cilia present equatorially; saltatorial locomotion quite common (Carey, 1992).

Similar Genus ->> Strombidium

Halteria sp., cell body μm long, μm wide, Ayase River, Saitama Pref., Japan, 5.30.1999 by A. Kihara

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