Family: Solitary, gregarious, or colonial; most are aloricate, some form lorica; each zooid has its own, independently contractile myoneme in full length of stalk.
Genus: Solitary, but often gregarious; myoneme continuous within full length of stalk (Illustrated Guide, 1985).
Species: Cell body 90 μm long (Kahl, 1930).

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V. patellina 69 x 56 μm peristome 94 μm Asaka Saitama, 1999	V. patellina 50 x 64 μm peristome 83 μm Kiyose Tokyo, 2001	V. patellina ? 63 x 59 μm peristome 94 μm Japan, 1998	V. patellina ? 69 x 75 μm peristome 106 μm Kiyose Tokyo, 2001
V. patellina ? 50 x 62 μm Shiba river near Owada Park Saitama, 2005	V. patellina ? μm peristome μm Chiba Park Chiba, 2003	V. patellina ? 65 x 80 μm peristome 100 μm near Karakemi m. Omachi Nagano, 2005

Similar Genus ->> Carchesium
Similar Species (cell length μm) -> V. d'udekemi (130); V. campanula (80); V. citrina (80); V. marginata (80); V. fornicata (42);

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