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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia lobostoma
Leidy, 1879

Family: Pseudostome terminal, of variable shape.
Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, with or lacking a collar (Illustrated Guide, 1985).

Species: Test ovoid to subspherical; aperture terminal; with three to six lobes; diameter 80-120 μm (Kudo, 1966). 90-170 μm long; 70-160 μm diam.; test, ovoid, round in cross-section; pseudostome terminal, usually quadrilobate, 30-50 μm diam. (Illustrated Guide, 1985).
Google Image Search
Difflugia
D. lobostoma
112 x 75μm
L/W=1.5
Japan, 199?
Difflugia
D. lobostoma
95-100 x 75-80 μ
L/W=1.3
Japan, 199?
Difflugia
D. lobostoma
100 x 70 μm
L/W=1.4
Japan, 199?
Difflugia
D. lobostoma ?
or D. tuberculata ?
95 x 75 μm
L/W=1.3
with 5 lobes
Japan, 1998
Movies
Difflugia
D. lobostoma
93 x 72 μm
L/W=
Tennoh
Tessei-cho
Okayama, 2004
Difflugia
D. lobostoma
test formation
μm
L/W=
Japan, 199?
Difflugia
D. lobostoma
cell division
μm
L/W=
Japan, 1998
Movies
Difflugia
D. lobostoma ?
μm
L/W=
Japan, 1998
Difflugia
D. lobostoma ?
78 x 60 μm
L/W=1.3
Iruma river
Kawagoe
Saitama, 2004
Difflugia
D. lobostoma
65-78 x 52-56 μm
L/W=1.3-1.4
Uruguay, 1999

D. lobostoma
65 x 53 μm
62 x 45 μm
L/W=1.2, 1.4
with 3 lobes
Uruguay, 1999
Difflugia lobostoma
D. lobostoma ?
68 x 58 μm
L/W=1.2
Omine-numa
Tsukiyono
Gunma, 2003
Difflugia
D. lobostoma ?
120 x 93 μm
122 x 85 μm
L/W=1.3, 1.4
with apical cones
Kurome river
Saitama, 1998
Difflugia
D. lobostoma ?
110 x 96 μm
L/W=1.1
with apical cones
Shikinawa-ike
Fukuoka, 2001

Similar Genus -->> Pseudodifflugia; Diaphoropodon


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Difflugia lobostoma
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