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Genus: Tvetenia

VANDA: Bunndyr
1989-08-31
Overhalla videregående skole
Raudsjøen (Trøndelag, Norway)
Acroperus harpae
Alonella excisa
Alonopsis elongata
Callicorixa sp.
Camptocercus rectirostris
Chydorus sphaericus
Corynoneura sp.
Enallagma cyathigerum
Linsekreps (Eurycercus lamellatus)
Graptoleberis testudinaria
Heterotanytarsus apicalis
Limnephilus nigriceps
Micropsectra groenlandica
Ophryoxus gracilis
Psectrocladius psilopterus
Retrocorixa semistriata
Thienemanniella sp.
Tvetenia calvescens
VANDA: Bunndyr
1989-09-01
Vest-Lofoten videregående skole / Lofoten Maritime Fagskole
Øvre Storfjordvatnet (Nordland, Norway)
Ablabesmyia monilis
Chironomus sp.
Cladopelma sp.
Corynoneura sp.
Cricotopus pilosellus
Cryptochironomus sp.
Dicrotendipes pulsus
Toøyd flatigle (Helobdella stagnalis)
Heterotanytarsus apicalis
Heterotrissocladius brundini
Heterotrissocladius marcidus
Hydroporus memnonius
Hydroporus morio
Vanlig damsnegl (Lymnaea peregra)
Monodiamesa bathyphila
Phaenopsectra sp.
Phryganea bipunctata
Pea clam (Pisidium sp.)
Procladius sp.
Sergentia coracina
Spongilla lacustris
Stempellina sp.
Stictochironomus sp.
Synorthocladius semivirens
Tanytarsus cf. gregarius
Tanytarsus curticornis gr
Tvetenia calvescens