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Home > Northwest Shells & Marine Life > PNW Shells & Marine Life Photos > Bivalves >  Bivalves - Hiatellidae & Pholadidae


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Click on photo to enlarge.  Scale line in photo equals 1cm unless otherwise specified.
* Species which are commonly encountered on the beach.





Hiatellidae
Hiatella arctica Hiatella arctica
attached to underside of a intertidal rock
Hiatella arctica (Linnaeus, 1767)
Arctic Hiatella *




Bivalves 

Family Hiatellidae & Pholadidae







   




Panomya ampla
Panomya ampla Dall, 1898
Ample Roughmya





Panopea generosa Panopea generosa
                                                                                                              freshly dug from sand


 


















Pholadidae
Penitella conradi
Penitella conradi
Valenciennes, 1846
Abalone Piddock
Panopea generosa (Gould, 1850)
Pacific Geoduck














Panopea generosa Panopea generosa
siphon at low tide                                                          juveniles


















Zirfaea pilsbryi Zirfaea pilsbryi Zirfaea pilsbryi
                                                                preserved specimen                                                   photographed subtidally
Zirfaea pilsbryi Lowe, 1931
Rough Piddock






Penitella penita
found at very low tide in mudstone

Xylophaga washingtona
Xylophaga washingtona Bartsch, 1921
Washington Woodeater







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Penitella penita Penitella penita




 
This page last revised: 8-18-2011

Penitella penita (Conrad, 1837)
Flat-Tip Piddock *