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).

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H. grandinella 31 x 30 μm Japan, 199?	H. grandinella 26 x 32 μm Japan, 1998	H. grandinella 20 x 21 μm Japan, 1999 Movies	H. grandinella 25 x 25 μm Mashiko Tochigi, 1999
H. grandinella cell μm Japan, 1998	H. grandinella ? μm Saitama, 1999	H. grandinella ? μm Near Railway Station Kochi, 2002	H. grandinella ? μm Senjo-ga-hara Nikko Tochigi, 2003
H. grandinella ? 27 x 28 μm Kenmin-kenko f.m.p. Koshigaya Saitama, 2006
Halteria sp. cell μm Japan, 1998	Halteria sp.1 23 x 26 μm Japan, 199?	Halteria sp. ? μm Tokyo & Tochigi, 2001	Halteria sp. ? 52 x 27 μm Tama river Komae Tokyo, 2004

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