Pholas dactylus Linnaeus, 1758
(Common Piddock)

Taxonomic hierarchy:
SpeciesPholas dactylus (Common Piddock)
SubfamilyPHOLADINAE (a subfamily of molluscs)
FamilyPHOLADIDAE (piddocks)
SuperfamilyPHOLADOIDEA (a superfamily of molluscs)
OrderMYOIDA (an order of molluscs)
InfraclassEuheterodonta (an infraclass of molluscs)
SubclassHETERODONTA (a subclass of bivalve 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 Pholas dactylus (Common Piddock) :
1: Pholas dactylus (Common Piddock)
25 Apr 2008 OSGR: SZ08 50° 40’ N, 1° 60’ W Vice County: Dorset (VC 9) England
dead shells, washed up on beach after storm
Image 1: 3 right valves - inner surfaces - black backgroundImage 2: 3 right valves - inner surfaces - pale backgroundImage 3: 3 right valves - inner surfaces - white backgroundImage 4: 3 right valves - outer surfaces - black backgroundImage 5: 3 right valves - outer surfaces - pale backgroundImage 6: 3 right valves - outer surfaces - white background
2: Pholas dactylus (Common Piddock)
31 Mar 1975 OSGR: TQ30 50° 50’ N, 0° 10’ W Vice County: East Sussex (VC 14) England
Image 1: Animal removed from holeImage 2: Animal removed from hole (2)
3: Pholas dactylus (Common Piddock) IDENTIFICATION UNCERTAIN
29 Mar 1975 OSGR: TQ30 50° 50’ N, 0° 10’ W Vice County: East Sussex (VC 14) England
Image 1: Syphons emerging from chalk on foreshore
4: Pholas dactylus (Common Piddock)
9 Jul 1967 OSGR: TQ30 50° 50’ N, 0° 10’ W Vice County: East Sussex (VC 14) England
dead shells c. 7cm deep in tunnels in chalk on foreshore
Image 1: Shells - inner surfaces - black backgroundImage 2: Shells - outer surfaces - black backgroundImage 3: Umbonal reflections and apophyses - close-upImage 4: Vertical septa supporting umbonal reflection - close-upImage 5: Shell - base - close-upImage 6: Shells - glued back to orientation in life - dorsal viewImage 7: Shells - glued back to orientation in life - ventral viewImage 8: Shells - hinge area - close-upImage 9: Shells - insidesImage 10: Shells - outsideImage 11: Shell surface texture - close-up

Pholas dactylus (Common Piddock) may be included in identification literature listed under the following higher taxa:

NBNNBN (data.nbn.org.uk) has a distribution map for Pholas dactylus (Common Piddock)
BioInfoBioInfo (www.bioinfo.org.uk) has 2 host/parasite/foodplant and/or other relationships for Pholas dactylus (Common Piddock)
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