Turridae

Antiplanes cf thalea
(Dall, 1902)

Turbonilla sp. 4

Turbonilla sp.

Turbonilla sp. 3

Turbonilla sp.

Turbonilla sp. 2

Turbonilla aurantia

Turbonilla aurantia
(Carpenter, 1864)
Golden Turbonille

Lirobittium munitum

Lirobittium munitum
(Carpenter, 1864)

Barleeidae

Barleeia acuta

Barleeia acuta
(Carpenter, 1864)
Acute Barleysnail

Scabrotrophon maltzani

Scabrotrophon maltzani
(Kobelt & Küster, 1878)

Oenopota turricula
(Montagu, 1803)
Turriculate Lora

Lottia triangularis

Lottia triangularis
(Carpenter, 1864)
Triangular Limpet

Lottia rosacea

Lottia rosacea
(Carpenter, 1864)
Pacific Rosy Limpet

Tricoliidae

Eulithidium pulloides

Eulithidium pulloides
(Carpenter, 1865)

Caecidae

Caecum crebricinctum

Caecum crebricinctum
Carpenter, 1864
Giant Caecum

Kurtzia arteaga

Kurtzia arteaga
(Dall & Bartsch, 1910)
Beaded Mangelia

Kurtziella crebricostata

Kurtziella crebricostata
(Carpenter, 1864)
Violet-Band Mangelia

Oenopota excurvata

Oenopota excurvata
(Carpenter, 1864)

Ophiodermella inermis

Ophiodermella inermis
(Reeve, 1843)
Gray Snakeskin-Snail

Turbonilla sp. 1

Acteocina eximia

Acteocina eximia
(Baird, 1863)
Pleatless Barrel-Bubble

Cylichnidae

Acteocina culcitella

Acteocina culcitella
(Gould, 1852)
Western Barrel-Bubble

Fissurellidea bimaculata

Fissurellidea bimaculata
(Dall, 1971)
Two-Spot Keyhole Limpet

Epitonium sawinae

Epitonium sawinae
(Dall, 1903)
Sawin's Wentletrap

Puncturella cooperi

Puncturella cooperi
Carpenter, 1864

Lottiidae

Lottia asmi

Lottia asmi
(Middendorff, 1847)
Black Limpet

Chiton
Identification

This page last revised: 6-29-2010

Velutina velutina

Velutina velutina
O.F. Müller, 1776
Spiral Velvet Snail

Velutina prolongata

Velutina prolongata
Carpenter, 1864
Smooth Velvet Snail

Pyramidellidae

Odostomia columbiana

Odostomia columbiana
Dall & Bartsch, 1907

Cerithiidae

Cerithiopsis sp.

Cerithiopsis sp. 1

Caecum occidentale

Caecum occidentale
(Bartsch, 1920)
Western Caecum

Lepetidae

Cryptobranchia concentrica

Cryptobranchia concentrica
(Middendorff, 1847)
Ringed Blind Limpet

Rissoidae

Alvania compacta

Alvania compacta
(Carpenter, 1864)
Compact Alvania

Acmaeidae

Acmaea mitra

Acmaea mitra
Rathke, 1833
Whitecap Limpet*

Puncturella galeata

Puncturella galeata
(Gould, 1846)
Helmet Puncturella

Diodora aspera

Diodora aspera
(Rathke, 1833)
Rough Keyhole Limpet*

Fissurellidae

Cranopsis multistriata

Cranopsis multistriata
(Dall, 1914)
Many-Ribbed Puncturella

Lottia digitalis

Lottia digitalis
(Rathke, 1833)
Ribbed Limpet*

Margarites pupillus

Margarites pupillus
(Gould, 1849)
Puppet Margarite*

Pomaulax gibberosa

Pomaulax gibberosa
(Dillwyn, 1817)
Red Turban

Littorinidae

Lacuna variegata

Lacuna variegata
Carpenter, 1864
Variable Lacuna*

Tricolia sp.

Tricolia sp.

Littorina subrotundata

Littorina subrotundata
(Carpenter, 1864)
Salt Marsh Periwinkle
"barnacle ecotype"

Lacuna vincta

Lacuna vincta
(Montagu, 1803)
Wide Lacuna

Chlorostoma funebralis

Chlorostoma funebralis
(A.Adams, 1855)
Black Turban*

Littorina subrotundata

Littorina subrotundata
(Carpenter, 1864)
Salt Marsh Periwinkle
"marsh ecotype"

Littorina sitkana

Littorina sitkana
Philippi, 1846
Sitka Periwinkle*

Littorina scutulata

Littorina scutulata
Gould, 1849
Checkered Periwinkle*

Promartynia pulligo

Promartynia pulligo
(Gmelin, 1791)
Dusky Turban

Lirularia succincta

Lirularia succincta
(Carpenter, 1864)
Tucked Topsnail

Lirularia lirulata

Lirularia lirulata
(Carpenter, 1864)
Pearly Topsnail

Calliostoma variegatum

Calliostoma variegatum
Carpenter, 1864
Variable Topsnail

Calliostoma ligatum

Calliostoma ligatum
(Gould, 1849)
Blue Topsnail*

Calliostoma canaliculatum

Calliostoma canaliculatum
(Lightfoot, 1786)
Channelled Topsnail

Lottia scutum

Lottia scutum
(Rathke, 1833)
Plate Limpet*

Muricidae

Boreotrophon
multiscostatus
(Eschscholtz, 1829)
Ribbed Trophon

Batillariidae

Batillaria attramentaria

Batillaria attramentaria
(G.G.G. Sowerby I, 1855)
Mudflat Snail*

Turbinidae

Homalopoma baculum

Homalopoma baculum
(Carpenter, 1864)
Berry Dwarf Turban

Trochidae

Calliostoma annulatum

Calliostoma annulatum
(Lightfoot, 1786)
Purple-Ring Topsnail

Lottia persona

Lottia persona
(Rathke, 1833)
Mask Limpet*

Lottia pelta

Lottia pelta
(Rathke, 1833)
Shield Limpet*

Lottia parallela

Lottia parallela
(Dall, 1921)
Pacific Eelgrass Limpet*

Lottia instabilis

Lottia instabilis
(Gould, 1846)
Unstable Limpet*

Trichotropidae

Trichotropis cancellata
Hinds, 1843
Checkered Hairysnail

Homalopoma luridum

Homalopoma luridum
(Dall, 1885)
Dwarf Turban

Calyptraeidae

Calyptraea fastigiata

Calyptraea fastigiata
Gould, 1846
Cup-and-Saucer Snail

Epitoniidae

Epitonium indianorum

Epitonium indianorum
(Carpenter, 1865)
Money Wentletrap

Lirobittium vancouverense

Lirobittium vancouverense
(Dall & Bartsch, 1910)

Cerithiopsis sp.

Cerithiopsis sp. 3

Cerithiopsis sp.

Cerithiopsis sp. 2

Lirobittium attenuatum

Lirobittium attenuatum
(Carpenter, 1864)
Slender Bittium

Crepipatella dorsata

Crepipatella dorsata
(Broderip, 1834)
Wrinkled Slipper-Shell*

Crepidula perforans

Crepidula perforans
(Valenciennes, 1846)
Western White
Slipper-Shell

Crepidula nummaria

Crepidula nummaria
Gould, 1846
Northern White
Slipper-Shell

Nucella canaliculata
(Duclos, 1832)
Channeled Dogwinkle

Ceratostoma foliatum
(Gmelin, 1791)
Leafy Hornmouth*

Boreotrophon stuarti

Boreotrophon stuarti
(A.E. Smith, 1880)
Winged Trophon

Boreotrophon orpheus

Boreotrophon orpheus
(Gould, 1849)
Corded Tropho

Columbellidae

Alia carinata

Alia carinata
(Hinds, 1844)
Carinate Dovesnail*

Ocinebrina lurida
(Middendorff, 1849)
Lurid Rocksnail*

Ocinebrina interfossa

Ocinebrina interfossa
Carpenter, 1864
Sculptured Rocksnail

Hipponicidae

Antisabia panamensis

Antisabia panamensis
(C.B. Adams, 1852)
Flat Hoofsnail

Ocinebrellus inornatus

Ocinebrellus inornatus
(Récluz, 1851)
Japanese Oyster Drill

Lirabuccinum dirum
(Reeve, 1846)
Dire Whelk*

Buccinidae

Beringius eyerdami

Beringius eyerdami
A.G. Smith, 1959
Eyerdam's Whelk

Velutinidae

Marsenina rhombica

Marsenina rhombica
(Dall, 1871)
Marbled Lamellarid

Marsenina stearnsi

Marsenina stearnsi
(Dall, 1871)
Stearn's Ear Shell

Ilyanassa obsoleta

Ilyanassa obsoleta
(Say, 1822)
Black Dog Whelk

Hima mendica
(Gould, 1849)
Western Lean Nassa*

Hima fratercula
(Dunker, 1862)
Japanese Nassa

Nassariidae

Caesia fossatus
(Gould, 1850)
Giant Western Nassa

Olividae

Callianax baetica

Callianax baetica
(Carpenter, 1864)
Baetic Olive

Neptunea stilesi

Neptunea stilesi
A.G. Smith, 1968
Inflated Whelk

Neptunea lyrata lyrata
(Gmelin, 1791)
Ridged Whelk

Buccinum plectrum

Buccinum plectrum
Stimson, 1855
Sinuous Whelk

Astyris gausapata
(Gould, 1850)
Dovesnail

Amphissa columbiana

Amphissa columbiana
Dall, 1916
Wrinkled Amphissa*

Ocinebrina atropurpurea
(Carpenter, 1865)
Purple Rocksnail

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Haminoea vesicula

Haminoea vesicula
Gould, 1855
White Bubble Shell

Ophiodermella cancellata

Ophiodermella cancellata
(Carpenter, 1864)
Cancellate
Snakeskin-Snail

Oenopota tabulata

Oenopota tabulata
(Carpenter, 1864)

Oenopota pyramidalis

Oenopota pyramidalis
(Strom, 1788)
Pyramid Lora

Oenopota levidensis

Oenopota levidensis
(Carpenter, 1864)

Oenopota fidicula

Oenopota fidicula
(Gould, 1849)

Ocinebrina sclera

Ocinebrina sclera
(Dall, 1919)
Sclera Rocksnail

Bivalve
Identification

Haminoeidae

Haminoea japonica

Haminoea japonica
(Pilsbry, 1895)
Oval Bubble Shell

Oenopota elegans

Oenopota elegans
(Müller, 1842)
Elegant Lora

Cystiscidae

Granulina margaritula

Granulina margaritula
(Carpenter, 1857)
Pear-Shaped Marginella

Neptunea phoenicia
(Dall, 1891)
Phoenician Whelk

Nucella ostrina

Nucella ostrina
(Gould, 1852)
Northern Striped
Dogwinkle*

Nucella lima

Nucella lima
(Gmelin, 1791)
File Dogwinkle

Nucella lamellosa

Nucella lamellosa
(Gmelin, 1791)
Frilled Dogwinkle*

Ranellidae

Fusitriton oregonensis
(Redfield, 1848)
Oregon Triton

Euspira lewisi

Euspira lewisii
(Gould, 1847)
Lewis's Moonsnail*

Naticidae

Cryptonatica aleutica

Cryptonatica aleutica
(Dall, 1919)
Aleutian Moonsnail

Crepidula onyx

Crepidula onyx
(Sowerby, 1824)
Onyx Slipper-Shell

Crepidula convexa

Crepidula convexa
Say, 1822
Atlantic Convex
Slipper-Shell

Garnotia adunca

Garnotia adunca
(G.B. Sowerby I, 1825)
Hooked Slipper-Shell

Amathinidae

Iselica obtusa

Iselica obtusa
(Carpenter, 1864)
Obtuse Iselica

Opalia borealis

Opalia borealis
Keep, 1881
Boreal Wentletrap

Epitonium tinctum
(Carpenter, 1864)
Tinted Wentletrap

Stylidium eschrichtii

Stylidium eschrichtii
(Middendorff, 1849)
Threaded Bittium*

Cancellariidae

Neoadmete modesta

Neoadmete modesta
(Carpenter, 1864)
Modest Latticework Snail

Turbinellidae

Exilioidea rectirostris
(Carpenter, 1865)
Small Tall Whelk

Callianax pycna
(S.S. Berry, 1935)
Zigzag Olive

Callianax biplicata

Callianax biplicata
(Carpenter, 1864)
Purple Olive*

Lottia fenestratus

Lottia fenestratus
(Reeve, 1855)
Fenestrate Limpet*

Haliotidae

Haliotis kamtschatkana

Haliotis kamtschatkana
Jonas, 1845
Northern Abalone

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to Northwest Shells

Gastropods of the Pacific Northwest

(Northern California to Southeast Alaska)

Click on photo to enlarge. Scale line in photo equals 1cm unless otherwise specified.
* Species which may be found intertidally (on the beach)
Species without an asterisk are intertidal but difficult to find or
are normally found below the lowest tide level (by divers)