Family: Attached by flexbile podite; body laterally compressed (Illustrated Guide, 1985).
Genus: Cilia in groove, opening to right; margins smooth; body kineties complete (Illustrated Guide, 1985). Usually ovoid, ventral surface flattened; dorsal domed and longitudinally ribbed with a cleft on the right lateral edge; a large podite with secretory canal posterior; somatic ciliation restricted to ventral surface; a large macronucleus central; two contractile vacuoles (Carey, 1992).
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D. calkinsi ?
32 x 20 μm
Japan, 1998
D. calkinsi ?
28 x 16 μm
Saitama, 1999
D. calkinsi ?
28 x 18 μm
Sayama
Saitama, 2001
D. calkinsi ?
27 x 18 μm
Akigase Park
Saitama, 2002
D. calkinsi ?
24 x 15 μm
Lake Kawaguchi
Yamanashi, 2001
D. calkinsi ?
23 x 12.5 μm
Japan, 1999
D. calkinsi ?
23 x 15 μm
Japan, 1998
D. calkinsi ?
22 x 14 μm
Koshigaya
Saitama, 2001
D. calkinsi ?
32 x 18 μm
Omoi river
Oyama
Tochigi, 2004
D. calkinsi ?
28 x 19 μm
Kawaguchi N.P.
Kawaguchi
Saitama, 2006
D. calkinsi ?
25 x 15 μm
Hanasaki water p.
Kazo
Saitama, 2005
D. navicula
23 x 12 μm
Saitama, 1999
Dysteria sp. ?
42 x 27 μm
Kurome river
Asaka
Saitama, 2004