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Species:
Dicranophorus luetkeni (Bergendal, 1892) 		Valid Name:
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Dicranophorus: Dicranophoridae: Ploima: Pseudotrocha: Monogononta: Eurotatoria 		Taxonomic / nomenclatural notes:
• Type species of genus Arthroglena Bergendal, 1892 (invalid synonym of genus Dicranophorus Nitzsch, 1827).
• ?Diglena dromius Glascott after Bilfinger (1894) [Ref.17049].
?not Arthroglena luetkeni Bergendal after Voigt (1904) [Ref.17629] [identity unclear].
• Voigt's (1904) (op. cit.) record of Arthroglena luetkeni Bergendal from N-Germany peat bogs is at best doubtful by its deviating trophi, for which Voigt mentions that "von den vier allmählich kürzer werdenden Zähnen der Rami ... zeigte der von mir untersuchte Kauer nichts" and in which alulae are also lacking.
• Bertani et al. (2011) show a form with with horizontally directed "forcipatus-like" alulae on the trophus. This ID requires verification.
Nomenclatural status:
name in current use 		Species group name declinable:
no 		Validity:
valid 		Taxon Rank:
Species 		Availability:
available
Original Combination:
Arthroglena luetkeni 		Original Spelling:
Arthroglena Lütkeni 		Latest Revision:
De Smet, W H (1997): Guides to the identification of the microinvertebrates of the continental waters of the world Vol. 5: 1-325, 341-344
Page last modified on: 27.02.2018 by C.D. Jersabek
Original description
 
Bergendal, D (1892): Lunds universitets års-skrift. Acta Universitatis Lundensis (sect. 2), 28
p.96, fig.30
Bergendal, D (1892): Lunds universitets års-skrift. Acta Universitatis Lundensis (sect. 2), 28 p.96, fig.30
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Literature documentations
 
Bilfinger, L (1894): Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg 50
(?) sub Diglena dromius Glascott
Bilfinger, L (1894): Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg 50
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Observation images
 
Image courtesy of ANSP (Jersabek et al. 2003) [Ref.15798]; female (1227) and male (583), lateral views, and trophi (603) dorsal view
Image courtesy of ANSP (Jersabek et al. 2003) <a href='../../Reference/Index/15798' target='_blank'>[Ref.15798]</a>; female (1227) and male (583), lateral views, and trophi (603) dorsal view
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SEM trophi image , courtesy of Diego Fontaneto & Giulio Melone -   Trophi website

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Bergendal, D, 1892 Lunds universitets års-skrift. Acta Universitatis Lundensis(sect. 2), 28
Bertani, I;H Segers;G Rossetti, 2011 Journal of Limnology70 
Bilfinger, L, 1894 Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg50 
De Smet, W H, 1997 Guides to the identification of the microinvertebrates of the continental waters of the world5 
Donner, J, 1954 Österreichische Zoologische Zeitschrift5Dicranophorus luetkeni (Bergendal, 1892)
Harring, H K;F J Myers, 1928 Transactions of the Wisconsin Academy of Sciences, Arts and Letters23
Hauer, J, 1958 Nachrichten des naturwissenschaftlichen Museums der Stadt Aschaffenburg60 
Jersabek, C D, 1998 Hydrobiologia387/388
Jersabek, C D, 1998 Hydrobiologia387/388Dicranophorus luetkeni (Bergendal, 1892)
Jersabek, C D, 2011 Mitteilungen aus dem Haus der Natur19Dicranophorus luetkeni (Bergendal, 1892)
Jersabek, C D;E Bolortsetseg, 2010 Proceedings of the Academy of Natural Sciences of Philadelphia159Dicranophorus luetkeni (Bergendal, 1892)
Jersabek, C D;H Segers;B J Dingmann, 2003 The Academy of Natural Sciences of Philadelphia, Special Publications20Dicranophorus luetkeni (Bergendal, 1892)
Koste, W, 1965 Veröffentlichungen des naturwissenschaftlichen Vereins Osnabrück31 
Koste, W, 1976 Osnabrücker naturwissenschaftliche Mitteilungen4 
Montet, G, 1915 Revue Suisse de Zoologie23 
Schmid-Araya, J M, 1993 Jahresberichte der Biologischen Station Lunz14 
Sharma, B K, 1979 Hydrobiologia65 
Sørensen, M V, 2002 Arctic Biology Field Course, Qeqertarsuaq, 2002  
Voigt, M, 1904 Plöner Forschungsberichte11
Von Hofsten, N, 1923 Naturwissenschaftliche Untersuchung des Sarekgebirges4 
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IUILocality(sorted ascending)
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Atlantic Co., sphagnum ditch
- / -04.05.1939Collection / - / Specimen preparations2048
C
 
Bayan Nuur (C)
Bottom sediments (shallow littoral) / Lake, freshwater10.09.2006Expedition, Literature / - / Published Information2308
L
 
Brunnkarsee
Bottom sediments (littoral sand, cobble, gravel) / Lake, freshwater (alpine, ultraoligotrophic)21.09.1991Collection, Literature / - / Specimen preparations including published info128
L
 
Dösental, Sphagnum bog (Lackenboden)
Moss (Sphagnum, peat moss) / Bog, peat bog02.08.2009Expedition, Literature / - / Published Information2308
L
 
Gamskarlsee
Bottom sediments / Lake, freshwater (alpine, ultraoligotrophic)10.08.1992Collection, Literature / - / Specimen preparations including published info128
L
 
Har Nuur
Moss (submersed, semi-emersed) / Lake, freshwater28.07.2005Expedition, Literature / - / Published Information260
L
 
Har Nuur
Sedges (Carex sp.), 'open water' between plants / Lake, freshwater28.07.2005Expedition, Literature / - / Published Information260
L
 
Hartsagatiin Guu Gol
Stream bottom: POM (sand, gravel) / Brook, freshwater15.08.2005Expedition, Literature / - / Published Information2308
L
 
Herzerlsee
Littoral microhabitats / Pond, peat bog (alpine)25.08.1990Collection, Literature / - / Specimen preparations including published info128
L
 
Herzerlsee, nearby Pond 3
Littoral microhabitats / Pond, peat bog (alpine)25.08.1990Collection, Literature / - / Specimen preparations including published info128
L
 
Hotel Lukashansl, Schwimmteich
Open water (tychoplanktonic) / Pond, freshwater03.09.2019CJ unpubl. / - / Unpublished Information, own observations (CJ)1
F
 
Hövsgöl Nuur (shallow littoral)
Bottom sediments (shallow littoral sand, mud) / Lake, freshwater (oligotrophic)24.07.2005Expedition, Literature / - / Published Information2308
L
 
Hövsgöl Nuur (shallow littoral)
Macrophytes (Hippuris, Polygonum, Zannichellia?) / Lake, freshwater (oligotrophic)24.07.2005Expedition, Literature / - / Published Information2308
L
 
Kölnbreintümpel
Moss (Sphagnum, peat moss) / Pond, peat bog (alpine)24.09.1991Collection, Literature / - / Specimen preparations including published info128
L
 
Kölnbreintümpel
Mud surface / Pond, peat bog (alpine)24.09.1991Collection, Literature / - / Specimen preparations including published info128
L
 
Krottenseemoor bei Gmunden
Littoral microhabitats / Bog, peat bog31.07.1994CJ unpubl. / - / Unpublished Information, own observations (CJ)1
F
 
Lainkarspitzensee
Bottom sediments (littoral sand, cobble, gravel) / Lake, freshwater (alpine, ultraoligotrophic)10.08.1992Collection, Literature / - / Specimen preparations including published info128
L
 
Lenape Lake
Moss (Sphagnum, peat moss) / -02.09.1927Collection / - / Specimen preparations2048
C
 
Nachtkarwand, pasture pond 2
Mud surface / Pool, freshwater (alpine pastureland)04.08.1990Collection, Literature / - / Specimen preparations including published info128
L
 
Neureiter, swimming pond (Biovital Hotel Sommerau)
Open water (tychoplanktonic) / Pond, freshwater (artificial)19.07.2016CJ unpubl. / - / Unpublished Information, own observations (CJ)1
F
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ANSP 0242 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 female1 
ANSP 0583 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 male1 
ANSP 0603 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 trophi1 
ANSP 1227 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 females2 
ANSP 1228 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 trophi1 
USNM 39769 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 females2 
USNM 39768 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Dicranophorus luetkeni (Bergendal, 1892) 		 female1 
NHM 1917.1.1.215 Dicranophorus luetkeni (Bergendal, 1892)
Orig.Id.: Diglena dromius Glascott, 1893 		?female1 
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Geographical Range:
Cosmopolitan, including Antarctic region.
Macrohabitat:
Bog, peat bog; Brook, freshwater; Lake, freshwater; Lake, freshwater (alpine, ultraoligotrophic); Lake, freshwater (oligotrophic); Pond, freshwater (artificial); Pond, peat bog (alpine); Pool, freshwater (alpine pastureland);
Microhabitat:
Bottom sediments; Bottom sediments (littoral sand, cobble, gravel); Bottom sediments (shallow littoral sand, mud); Bottom sediments (shallow littoral); Littoral microhabitats; Macrophytes (Hippuris, Polygonum, Zannichellia?); Moss (Sphagnum, peat moss); Moss (submersed, semi-emersed); Mud surface; Open water (tychoplanktonic); Psammolittoral; Sedges (Carex sp.), 'open water' between plants; Stream bottom: POM (sand, gravel);
Temperature:
7.30°C to 29.00°C, avg=15.83°C, n=19 		Redox:
-104.00mV to -31.00mV, avg=-68.00mV, n=5
Oxygen:
1.50mg/l to 10.80mg/l, avg=8.12mg/l, n=10 		Conductivity:
5.00µs/cm to 456.00µs/cm, avg=101.11µs/cm, n=19
Saturation:
17.00% to 132.60%, avg=97.95%, n=10 		TDS:
39.00mg/l to 1131.00mg/l, avg=448.83mg/l, n=6
PH:
4.30 to 9.00, avg=6.63, n=21 		Salinity:
0.00ppt to 0.20ppt, avg=0.10ppt, n=6
Ecology summary:
Benthic and periphytic in various lentic and lotic freshwater habitats, particularly peat bogs; on mud, in limnopsammal and hyporheic interstitial of streams, among moss (incl. Sphagnum), and macrophytes; prefers oligotrophic and dystrophic conditions; psammophile, eurythermic, tolerates a wide pH-range (Jersabek & Bolortsetseg, 2010) [Ref.18457].
Food:
 
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PalaearctisP2 SiberianAsiaMongoliaUvsZüüngovi soum
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