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Chlorophyceae: Chlamydomonadales (Volvocales): Chlamydomonadaceae
Volvocida: Chlamydomonadina: Carteriidae

Vitreochlamys
Batko 1970
Formerly Sphaerellopsis Korschikoff 1925
Sphaerellopsis Korshikov 1925 (John et al. eds. 2002)

Family: Unicells; cell wall present; two flagella (Illustrations of The Japanese Fresh-water Algae, 1977).
Genus: Cell body essentially similar to Chlamydomonas, but cellwall always apart from cell body; outline of cellwall ellipsoidal, ovoid, spherical, or cylindrical; cellwall thin or thick; papilla rare; protoplasm cylindrical, ovoid, elongated ellipsoidal, or spindle-shaped, in some species with tail-like structure; space between the cellwall and protoplasm sometimes filled with gelatinous matrix; two flagella emerging from protoplasm through tubular structure existing between the protoplasm and cellwall to outside of cellwall; chloroplast parietel, cup-shaped or H-form; pyrenoids present/absent; stigma also present/absent; nucleus centrally located or slightly anterior; contractile vacoules two, rarely four (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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Vitreochlamys, formerly Sphaerellopsis
V. sphaerelloides
15-18 x 5.5-6.5 μm
Ageo
Saitama, 2003
Vitreochlamys
V. sphaerelloides ?
22 x 14 μm
Tsutsuji-ga-oka
Tatebayashi
Gunma, 2006
Vitreochlamys, formerly Sphaerellopsis
V. fluviatilis
cell 15 x 9 μm
Ueno
Tokyo, 2001
Vitreochlamys, formerly Sphaerellopsis fluviatilis
V. fluviatilis
cell 17 x 8 μm
Okubo Ryoke
Akigase park
Saitama, 2005
Vitreochlamys fluviatilis
V. fluviatilis
cell 25 x 18 μm
Ashikaga flower p.
Ashikaga
Tochigi, 2006
Vitreochlamys, formerly Sphaerellopsis
V. aulata
or V. fluviatilis ?
cell 14 x 10 μm
Kawashima
or Kawajima
Saitama, 2002
Vitreochlamys, formerly Sphaerellopsis
V. aulata
cell μm
Shiraoka
Saitama, 2003
Vitreochlamys, formerly Sphaerellopsis
V. aulata
cell μm
Matsubushi
Saitama, 2003
Vitreochlamys, formerly Sphaerellopsis
V. aulata
cell μm
Kawanago
Ishibashi
Tochigi, 2004
Vitreochlamys, formerly Sphaerellopsis
V. aulata
& stock Tisk-2e
cell 18 x 16 μm
Kamigo ni-ku
Kaminokawa
Tochigi, 2004
Chlamydomonas
V. aulata
cell 23-25 x μm
cell 18 x 16 μm
Kamigo ni-ku
Kaminokawa
Tochigi, 2006
Vitreochlamys
V. aulata
cell 26 x 23 μm
Umenoki-furukori
Higashi-Matsuyama
Saitama, 2006
Vitreochlamys
V. aulata
cell 19-29 x μm
Kami-omino
Kawajima
Saitama, 2006
Vitreochlamys aulata
V. aulata
cell 21 x 17 μm
Kijioka Castle Ruin
Honjo
Saitama, 2006
Vitreochlamys, formerly Sphaerellopsis
V. aulata ?
cell 13-21 x 10-18 μm
Shimo-muneoka
Shiki
Saitama, 2004
Vitreochlamys, formerly Sphaerellopsis
V. aulata ?
cell 16 x 15 μm
Kurome rivers
Asaka
Saitama, 2004
Vitreochlamys
V. aulata ?
cell 17 x 14 μm
Hazama marsh
Ashikaga
Tochigi, 2006
Vitreochlamys, formerly Sphaerellopsis ordinata
V. ordinata ?
or Chlamydomonas ?
cell 20 x15 μm
Matsubushi
Saitama, 2003
Vitreochlamys, formerly Sphaerellopsis
V. velata ?
or V. cylindrica ?
μm
Flower park
Ashikaga
Tochigi, 2003
Vitreochlamys
V. velata ?
or V. cylindrica ?
μm
Old Sugata river
Mibu
Tochigi, 2008

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Vitreochlamys, formerly Sphaerellopsis
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