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).

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Peristome wider than cell body
Vorticella sp. 120 x 80 μm peristome 114 μm Minuma Natural p. Saitama Saitama, 2005	Vorticella sp. 110 x μm peristome μm Hikone Shiga, 2003	Vorticella sp. 110 x 85 μm peristome 102 μm Shirakobato water p. Iwatsuki-ku Saitama, 2006
V. patellina 7 samples 63-69 μm peristome 83-106 Japan, 1998-2005	Vorticella sp. 69 x 48 μm peristome 81 μm Japan, 1997	V. fornicata ? 35 x 31 μm peristome 46 μm Japan, 199?	V. campanula 18 samples 56-80 μm peristome 48-91 μm 1997-2006 Movies
Vorticella sp. 50 x 40 μm peristome 50 μm stalk long Saitama, 1999	Vorticella sp. 48 x 43 μm peristome 43 μm Kurihashi Saitama, 2001	V. cylindrica 4 samples 44-94 μm peristome μm stalk long 2004-2005	V. nebulifera 9 samples 58-75 μm peristome 39-56 μm Saitama, 1998-2007
V. convallaria ? or V. marina ? 2 samples 65 x 42-45 μm peristome μm 2002-2003	V. convallaria 24 samples 34-80 μm peristome μm 1997-2005 Movies	V. elongata 3 samples 60 x 20 μm peristome μm cell body elongated Japan, 1998-99 Movies	V. telescopica ? 38 x 15 μm peristome μm cell body elongated Hiroshima, 1998
V. marina ? 3 samples 55-73 μm peristome μm anterior constricted 1998-2005	V. pulchra ? 7 samples 39-80 x 27-40 μm peristome 34-40 μm anterior constricted 1998-2006	Vorticella sp. 2 samples 33-54 x μm 2004-2005	Vorticella sp. 4 samples Yellowish cyto. 55-70 x μm 2001-2008
Vorticella sp. 3 samples 43-50 x μm Yellowish cyto. 2001-2003
Cell surface with special ornaments
V. monilata or Pseudovorticella ? 2 samples 78-93 μm peristome μm surface beaded with Chlorella Japan, 2000	V. monilata ? or Pseudovorticella ? μm endosymbiotic algae Ishinazaka Furukawa Miyagi, 2003	Vorticella sp. or Pseudovorticella ? 3 samples 47-67 x μm 2001-2005	Vorticella sp. or Pseudovorticella ? μm peristome μm Tsurugashima Saitama, 2003
Vorticella sp. 4 samples 35-60 x μm peristome 44-50 μm 2004-2005	V. vestita ? 70 x 52 μm peristome 56 μm gelatinous coat ? Japan, 199?	V. striata 17 samples 22-45 μm peristome 12-22 μm striae conspicuous 1999-2006	Vorticella sp. 33 x 17 μm peristome 56 μm Onnenai Kushiro marsh Hokkaido, 2005
Peristome narrower than cell body
V. anomala 62 x 52 μm peristome 40 μm Saitama, 1999	Vorticella sp. 73 x 47 μm peristome 34 μm Japan, 1998	Voticella sp. μm peristome μm Kanazawa Ishikawa, 2002
V. pyrum 45 x 22 μm peristome 14 μm Uruguay, 1999	V. pyrum 50 x 28 μm peristome 20 μm Kami-omino Kawajima Saitama, 2006	V. pyrum ? μm peristome μm Kazo Saitama, 2003	Vorticella sp. 50 x 44 μm peristome 22 μm stalk very long Hino Tokyo, 2004
V. microstoma ? 47 x 31 μm peristome 19 μm Koshigaya Saitama, 2001	V. microstoma 16 samples 27-57 μm peristome 16-25 μm 1998-2006	V. globosa 30 x 28 μm peristome 15 μm Musashi-Urawa Saitama, 2001	V. globosa μm peristome μm Higashi-Matsuyama Saitama, 2002
V. minima 4 samples 21-29 μm peristome 16-19 μm 199?-2006	Vorticella sp. 7.5 x 5 μm peristome μm Japan, 1998

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