Unio tumidus Retzius, 1788
(Swollen River Mussel)

Taxonomic hierarchy:
SpeciesUnio tumidus (Swollen River Mussel)
GenusUnio (a genus of molluscs)
FamilyUNIONIDAE (a family of freshwater mussels)
OrderUNIONOIDA (an order of molluscs)
ClassBIVALVIA (bivalves)
PhylumMOLLUSCA (slugs, snails, bivalves, octopus, sea slugs)
SuperphylumLOPHOTROCHOZOA (molluscs and relatives)
CladeBilateria (bilaterally symmetrical animals)
SubkingdomEUMETAZOA (metazoans)
KingdomANIMALIA (animals)
DomainEukaryota (eukaryotes)
LifeBIOTA (living things)
Records of Unio tumidus (Swollen River Mussel) :
1: Unio tumidus (Swollen River Mussel)
31 Mar 2012 OSGR: SU67 51° 30’ N, 1° 10’ W Vice County: Berks (VC 22) England
Dead shells found beside fishing lake
Image 1: Hinge - close-up - white backgroundImage 2: Shell - inner surface - white backgroundImage 3: Shell - inner surface - white background (2)Image 4: Shell pair - closed - hinge view - white backgroundImage 5: Shell pair - open to show inner surfaces - white backgroundImage 6: Shell pair - open to show outer surfaces - white backgroundImage 7: Hinge teeth in left valve - highly enlarged - black backgroundImage 8: Hinge teeth - left valve - close-up - enlarged - white backgroundImage 9: Hinge teeth - right valve - close-up - enlarged - white backgroundImage 10: Hinge tooth in right valve - highly enlarged - black backgroundImage 11: Umbonal rugae - close-up - enlarged

Unio tumidus (Swollen River Mussel) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Unio tumidus (Swollen River Mussel)
BioInfoBioInfo (www.bioinfo.org.uk) has 0 host/parasite/foodplant and/or other relationships for Unio tumidus (Swollen River Mussel)
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