![](https://resourcespace.naturalis.nl/filestore/8/0/6/1/9_f77c2157af42c06/80619_a3bf428b68df363.jpg?v=2016-06-17+13%3A42%3A05)
Hinge on inside of shell with numerous alternating teeth and sockets
Step 323
![](https://resourcespace.naturalis.nl/filestore/8/0/6/4/9_a17c8435faa6abe/80649_ea5dad3303106cb.jpg?v=2016-06-17+13%3A42%3A12)
Hinge on inside of shell with clearly differing cardinal teeth (ct) and lateral teeth (lt), or without teeth
Step 338
170 possible taxa remaining show common names
- Abra alba
- Abra longicallus
- Abra nitida
- Abra prismatica
- Abra tenuis
- Acanthocardia echinata
- Acanthocardia tuberculata
- Aequipecten opercularis
- Anomia ephippium
- Arca nodulosa
- Arca tetragona
- Arcopagia balaustina
- Arcopagia crassa
- Arctica islandica
- Astarte borealis
- Astarte elliptica
- Astarte montagui
- Astarte sulcata
- Atrina pectinata
- Bankia fimbriatula
- Barnea candida
- Barnea parva
- Bathyarca pectunculoides
- Cardiomya costellata
- Cerastoderma edule
- Cerastoderma lamarcki
- Chamelea striatula
- Chlamys sulcata
- Chlamys varia
- Clausinella fasciata
- Cochlodesma praetenue
- Corbula gibba
- Crassadoma pusio
- Crassostrea gigas
- Crassostrea virginica
- Crenella decussata
- Cuspidaria cuspidata
- Cuspidaria obesa
- Cuspidaria rostrata
- Devonia perrieri
- Diplodonta rotundata
- Donax vittatus
- Dosinia exoleta
- Dosinia lupina
- Ensis americanus
- Ensis arcuatus
- Ensis ensis
- Ensis minor
- Ensis siliqua
- Epilepton clarkiae
- Gari costulata
- Gari depressa
- Gari fervensis
- Gari tellinella
- Glycymeris glycymeris
- Goodallia triangularis
- Gouldia minima
- Hemilepton nitidum
- Heteranomia squamula
- Hiatella arctica
- Hyalopecten similis
- Idas simpsoni
- Irus irus
- Kellia suborbicularis
- Laevicardium crassum
- Lasaea rubra
- Lepton squamosum
- Limaria hians
- Limatula gwyni
- Limatula subauriculata
- Limea loscombi
- Loripes lacteus
- Lucinella divaricata
- Lucinoma borealis
- Lutraria angustior
- Lutraria lutraria
- Lyonsia norwegica
- Macoma balthica
- Macoma calcarea
- Mactra stultorum
- Mercenaria mercenaria
- Modiolarca subpicta
- Modiolula phaseolina
- Modiolus barbatus
- Modiolus modiolus
- Montacuta substriata
- Montacuta tenella
- Musculus costulatus
- Musculus discors
- Musculus niger
- Mya arenaria
- Mya truncata
- Myrtea spinifera
- Mysella bidentata
- Mysella dawsoni
- Mysella tumidula
- Mysia undata
- Mytilus edulis
- Mytilus galloprovincialis
- Nototeredo norvegica
- Nucula hanleyi
- Nucula nitidosa
- Nucula nucleus
- Nucula sulcata
- Nuculana minuta
- Nuculana pernula
- Nuculoma tenuis
- Ostrea edulis
- Palliolum furtivum
- Palliolum striatum
- Palliolum tigerinum
- Pandora albida
- Pandora pinna
- Panomya arctica
- Paphia aurea
- Paphia rhomboides
- Parvicardium exiguum
- Parvicardium minimum
- Parvicardium ovale
- Parvicardium scabrum
- Pecten maximus
- Petricola pholadiformis
- Pharus legumen
- Phaseolus guilonardi
- Phaxas pellucidus
- Pholas dactylus
- Pododesmus patelliformis
- Pododesmus squama
- Pseudamussium septemradiatum
- Psiloteredo megotara
- Saxicavella jeffreysi
- Scrobicularia plana
- Solecurtus chamasolen
- Solecurtus scopula
- Solen marginatus
- Sphenia binghami
- Spisula elliptica
- Spisula solida
- Spisula subtruncata
- Striarca lactea
- Tapes decussata
- Tapes philippinarum
- Tellimya ferruginosa
- Tellina donacina
- Tellina fabula
- Tellina pygmaea
- Tellina tenuis
- Teredo navalis
- Teredora malleolus
- Thracia convexa
- Thracia distorta
- Thracia papyracea
- Thracia villosiuscula
- Thyasira croulinensis
- Thyasira equalis
- Thyasira ferruginea
- Thyasira flexuosa
- Thyasira gouldi
- Thyasira sarsi
- Timoclea ovata
- Turtonia minuta
- Venerupis saxatilis
- Venerupis senegalensis
- Venus casina
- Venus verrucosa
- Xylophaga dorsalis
- Xylophaga praestans
- Yoldiella lucida
- Yoldiella philippiana
- Zirfaea crispata
Decision path