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Lobosea: Testacealobosia: Arcellinida: Difflugiidae

Difflugia elegans
Penard, 1890

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: 80-130 μm long; 60-105 μm diam.; test, like D. acuminata but shorter, broader; short neck constricted at pseudostome, flared as collar; hollow spine at base; yellow to brown; imbedded siliceous particles; pseudostome 45-55 μm (Illustrated Guide, 1985).
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Difflugia
D. elegans ?
or D. curvicaulis ?
150 x 80 μm
L/W=
Numa-no-hara m.
Madarao highland
Niigata, 2005
Difflugia elegans
D. elegans
138 x 82 μm
L/W=1.7
Kumakubo
Nasu-shiobara
Tochigi, 2005
Difflugia
D. elegans
120 x 78 μm
L/W=1.5
Tanohara marsh
Shiga highland
Nagano, 2006
Difflugia elegans
D. elegans
110 x 57 μm
L/W=1.9
Shikinawa-ike
Fukuoka, 2001
Difflugia elegans
D. elegans
110 x 50 μm
L/W=2.2
Kannon-numa
Shimogo
Fukushima, 2005
Difflugia elegans
D. elegans
90 x 52 μm
L/W=1.7
Jionji-shinsui p.
Iwatsuki-ku
Saitama, 2006
Difflugia elegans
D. elegans ?
or D. curvicaulis ?
105 x 57 μm
L/W=1.8
Ranzan
Saitama, 2003
Difflugia elegans
D. elegans
96 x 46 μm
L/W=2.1
Japan, 1998
Difflugia elegans
D. elegans
90 x 55 μm
L/W=1.6
Sue-machi
Fukuoka, 2001
Difflugia elegans
D. elegans
or D. curvicaulis ?
95 x 50 μm
L/W=1.9
Uruguay, 1999
Difflugia elegans
D. elegans ?
or D. curvicaulis ?
100 x 68 μm
L/W=1.5
Shikinawa-ike
Fukuoka, 2001
Difflugia
D. elegans ?
108 x 67 μm
L/W=1.6
Takao-sakura p.
Kitamoto
Saitama, 2005
Difflugia elegans
D. elegans ?
or D. curvicaulis ?
190 x 90 μm
L/W=2.1
Tanohara marsh
Shiga highland
Nagano, 2004
Difflugia elegans
D. elegans ?
collar present
123 x 75 μm
L/W=1.6
Kayoicho-ike
Fukuoka, 2001
Difflugia elegans
D. elegans ?
or D. curvicaulis ?
120 x 70 μm
L/W=1.7
Kabuto-yama
Nishi-no-miya
Hyogo, 2004
Difflugia elegans
D. elegans ?
or D. curvicaulis ?
105 x 63 μm
L/W=1.7
Narugo
Miyagi, 2003
Difflugia
D. elegans ?
or D. curvicaulis ?
175 x 90 μm
185 x 93 μm
L/W=1.9,2.0
Shibu-ike
Shiga highland
Nagano, 2005
Difflugia
D. elegans ?
or D. accuminata ?
170 x 80 μm
180 x 92 μm
L/W=2.0,2.1
Tanohara marsh
Shiga highland
Nagano, 2005
Difflugia
D. elegans ?
or D. accuminata ?
150 x 92 μm
170 x 88 μm
L/W=1.6-1.9
Hyoutan-ike
Shiga highland
Nagano, 2005
Difflugia
D. elegans ?
180-220 x μm
L/W=1.5-2.0
Hakama marsh
Madarao highland
Niigata, 2005
Difflugia elegans
D. elegans ?
or D. accuminata ?
135 x 65 μm
L/W=2.1
Hachiman-numa m.
Hachimantai
Iwate, 2005
Difflugia elegans
D. elegans ?
or D. accuminata ?
130 x 65 μm
L/W=2.0
Mida-ga-hara
Gassan
Yamagata, 2005
Difflugia
D. elegans ?
or D. accuminata ?
133 x 78 μm
L/W=1.7
Mida-ga-hara
Gassan
Yamagata, 2006
Difflugia
D. elegans
147 μm
Mitsuishi m.
Hachimantai
Iwate, 2008
Difflugia
D. elegans
167 μm
Iroha-numa 5
Zao mountain
Yamagata, 2008
Similar species -->> D. acuminata;
Similar genus -->> Paraeuglypha;

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Difflugia elegans
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