Home > Northwest Shells & Marine Life > PNW Shells & Marine Life Photos > Gastropods >  Gastropods - Lepetidae, Acmaeidae,
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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.




Lepetidae
Cryptobranchia concentrica Cryptobranchia concentrica
                                                       photographed on an extremely low tide
Cryptobranchia concentrica (Middendorff, 1847)
Ringed Blind Limpet
















Acmaeidae
Acmaea mitra
photographed intertidally
Acmaea mitra Rathke, 1833
Whitecap Limpet *








Gastropods 

Family Lepetidae, Acmaeidae,

Lottiidae & Siphonariidae











Lottia asmi
Lottia asmi (Middendorff, 1847)
Black Limpet







Lottia fenestrata Lottia fenestrata
                                                                                                              photographed intertidally
Lottia fenestrata (Reeve, 1855)
Fenestrate Limpet or Chocolate Limpet









Lottia digitalis Lottia digitalis
                                                                                                           photographed intertidally
Lottia digitalis (Rathke, 1833)
Ribbed Limpet or Finger Limpet *



Lottia instabilis Lottia instabilis
                                                                           photographed on kelp washed onshore
Lottia instabilis (Gould, 1846)
Unstable Limpet *










This page is still under construction.  
Please excuse any missing content.



Lottia paradigitalis
photographed intertidally
Lottia paradigitalis (Fritchman, 1960)










Lottia parallela Lottia parallela Lottia parallela
                                                                                                            photographed in tidepools
Lottia parallela (Dall, 1921)
Pacific Eelgrass Limpet *
** Preliminary studies are indicating that this may simply be an eelgrass morph of Lottia pelta **













Lottia pelta Lottia pelta Lottia pelta
                                                                                                    photographed intertidally            feeding trail on a rock
Lottia pelta (Rathke, 1833)
Shield Limpet *














Lottia persona Lottia persona
                                                                                                                     photographed intertidally
Lottia persona (Rathke, 1833)
Mask Limpet *












Lottia rosacea Lottia rosacea Lottia rosacea
                                                                                                                                     photographed intertidally
Lottia rosacea (Carpenter, 1864)
Pacific Rosy Limpet

























Lottia triangularis
Lottia triangularis (Carpenter, 1864)
Triangular Limpet










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Lottiidae
Discurria insessa Discurria insessa
                                                                                                     photographed intertidally
Discurria insessa (Hinds, 1842)
Seaweed Limpet




Lottia scutum Lottia scutum
                                                                   photographed intertidally
Lottia scutum (Rathke, 1833)
Pacific Plate Limpet *











Lottia comparison
Lottia comparison of similar looking species






















Siphonariidae
Siphonaria thersites
Siphonaria thersites (Carpenter, 1864)
Carpenter's False Limpet
This is actually an air-breathing land species. It lives on rocks close
to the high tide level and can sometimes be found dead on the beach.
We include it here because it is easily mistaken for a marine limpet, although it is uncommon to find.































This page last revised: 8-9-2011