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Spirotrichea: Stichotrichia: Stichotrichina: Amphisiellidae

Amphisiella
Gourret and Roeser, 1888

Suborder: Ventral cirri as 1 or more files of varied length; linear.
Family: Cirri in 2 marginal, 1 frontoventral files; cirral files straight; more than 1 frontoventral file extends past middle of body (Illustrated Guide, 1985).

Genus: Elongate, some species with a pronouced head region; body often twistes and flexes during locomotion; three rows of ventral cirri (2 rows of marginal cirri, 1 row of ventral cirri from Curds, 1982); frontal & V-shaped transverse cirri; transverse cirri may be very long extending beyond the posterior (Carey, 1992).
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Amphisiella
Amphisiella sp.1
100 μm; 5 t.c.
c.v. mid-ventral
posterior tapered
Japan, 1999
Amphisiella
Amphisiella sp.2
79 μm; 4.5 t.c. ?
c.v. mid-ventral
posterior tapered
Saitama, 1999
Amphisiella
Amphisiella sp.3
85 μm; 5 t.c.
c.v. mid-ventral
posterior rounded
Japan, 1998, 99
Amphisiella
Amphisiella sp.3
70-80 μm; 5 t.c.
c.v. mid-ventral
posterior rounded
Japan, 1998
Amphisiella
Amphisiella sp.3
75 x 20 μm; 5 t.c.
c.v. mid-ventral
Fujioka
Gunma, 2004
Amphisiella
Amphisiella sp.3
78 x 24 μm; 5 t.c.
Tane-ike
Togakushi highland
Nagano, 2006
Amphisiella
Amphisiella sp.3
66 μm; 5 t.c.
c.v. mid-ventral
posterior rounded
Tochigi, 2001
Amphisiella
Amphisiella sp. ??
μm; 4 t.c.
c.v. mid-ventral
posterior rounded
Matsubushi
Saitama, 2003
Amphisiella
Amphisiella sp.4
78 μm; 6 t.c.
c.v. posterior
posterior tapered
Japan, 1998
t.c. = transverse cirri; c.v. = contractile vacuole
Similar Genus ->> Holosticha; Balladyna; Urostyla

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Amphisiella
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