Rich Passage

Chlamys hastata  S
Chlamys rubida  S
Clinocardium nuttallii  I  [4]
Crassadoma gigantea  S
Entodesma navicula  I  [4]  
Hiatella arctica  I  [3]
Leukoma staminea  I  [3]
Macoma inquinata  I  [3]
Mytilus trossulus  I  [1]
Penitella penita  I  [3]
Penitella richardsoni  I  [4]
Penitella sp.  S
Petricola carditoides  I  [4]
Pododesmus macrochisma  I,S  [2]
Saxidomus gigantea  I  [3]
Zirfaea pilsbryi  I,S  [2]


Alia carinata  I,S  [3]
Alvania compacta  I  [4]
Amphissa columbiana  S
Calliostoma ligatum  I,S  [3]
Cerithiopsis sp.  I  [4]
Cranopsis cucullata  S  
Crepipatella lingulata  I  [3]
Cryptonatica aleutica  S
Epitonium indianorum  S
Evalea tenuisculpta  I  [4]
Hima mendica  I  [4]
Lacuna vincta  I  [3]
Limneria prolongata  S
Littorina scutulata  I  [1]
Littorina sitkana  I  [3]
Lottia digitalis  I  [3]
Lottia instabilis  I  [4]
Lottia paradigitalis  I  [3]
Lottia pelta  I  [1]
Lottia persona  I  [2]
Lottia aff. rosacea  I  [4]
Lottia scutum  I,S  [2]
Kurtziella crebricostata  S
Margarites pupillus  I,S  [4]
Marsenina stearnsi  S
Neostylidium eschrichtii  I  [2]
Neverita lewisii  I,S  [4]
Nucella lamellosa  I  [3]
Nucella ostrina  I  [3]
Odostomia sp.  I,S  [4]
     most likely Evalea tenuisculpta
Ophiodermella inermis  S

Cryptochiton stelleri  S
?Cyanoplax dentiens  S  [4]
Dendrochiton flectens  S
Lepidozona mertensii  I,S  [4]
Mopalia kennerleyi  I,S  [3]
Mopalia lignosa  I  [3]
Mopalia muscosa  I  [4]
Mopalia spectabilis  I,S  [4]
Mopalia swanii  I,S  [4]
Mopalia vespertina  I,S  [3]
Tonicella lineata  I,S  [3]
Acanthodoris brunnea  S
Acanthodoris hudsoni  S
Acanthodoris lutea  S
Acanthodoris nanaimoensis  S
Acanthodoris pilosa  S
Adalaria proxima  S
Aegires albopunctatus  S
Aeolidia loui  I,S  [4]
Aglaja ocelligera  S
Ancula gibbosa  S
Apata pricei  S
Aplysiopsis enteromorphae  S
Berthella californica  S
Cadlina luteomarginata  S
Cadlina modesto  S
Catriona columbiana  S
Coryphella verrucosa  S
Cumanotus fernaldi  S (nearby but                               not in Rich Passage)  
Cumanotus sp.1  S
Cuthonella cocoachroma  S
Cuthonella concinna  S
Cuthona divae  S
Dendronotus albus  S
Dendronotus iris  S
Dendronotus subramosus  S
Dendronotus venustus  S
Diaphana californica  S
Diaphoreolis flavovulta  S
Diaphoreolis viridis  S

Diaphorodoris lirulatocauda  S
Diaulula odonoghuei  S
Dirona albolineata  S
Doris montereyensis  S
Doto amyra  S
Doto columbiana  S
Doto kya  S
Eubranchus rupium  S
Eubranchus rustyus  S
Gastropteron pacificum  S
Geitodoris heathi  S
Hallaxa chani  S
Haminoea vesicula  I  [4]
Hermaea oliviae  S
Hermissenda crassicornis  I,S  [4]
Janolus fuscus  S
Knoutsodonta jannae  S
Limacia cockerelli  S
Melanochlamys diomedea S
Meliba leonina  S
Onchidoris bilamellata  I,S  [4]
Onchidoris evincta  S
Onchidoris muricata  S
Orienthella trilineata  S
Palio dubia  S
Peltodoris nobilis  S
Placida dendritica  S
Rostanga pulchra  S
Stiliger fuscovittatus  S
Trinchesia albocrusta  S
Triopha catalinae  S
Zelentia pustulata  S

Onchidella borealis  I  [4]

Enteroctopus dofleini  S
Octopus rubescens  S



Bremerton to Port Orchard 

Kitsap Co., WA

Site Description:       

This site covers the west central portion of Puget Sound which includes Dyes and Sinclair Inlets.  The narrow channel running through Bremerton is the Port Washington Narrows.  A public beach runs along the east side of the Narrows. This beach is interspersed with areas of cobble and sand.  At low tide, various algaes are exposed.  This beach also has a very diverse array of sea stars and crabs.
Port Orchard is at the south end of this area.  The beaches along here are a mix of sand, mud and gravel.  
The eastern portion of the inlets narrows to Rich Passage which enters Puget Sound just past Manchester State Park.  The south side of the Passage, where our data comes from, is a rocky shelf of mudstone, hard clay and gravel.
Many introduced species can be found in these inlets due to the shipping and naval traffic.  

Google Map

   east side of the Port Washington Narrows, gravel & sand                                    south side of Rich Passage, hard clay & rock           

Species List:

     Following is a list of mollusk species observed at this location by members and associates of the club.  This is by no means a complete list of the species which may occur at this site.  Revisions and additions to the data are made as we acquire new information.   When a site contains more than one very distinctive type of habitat or if multiple sites were included in a single location, then a species list for each is included.
    We indicate frequency of occurrence based on our observations.  This is an indicator of how likely it is that you may be able to find this species yourself and is not a formal population survey.  

     Frequency Code:  (Based on the assumption that you are looking in the appropriate location where the species
                                         likes to live - on rocks, in sand, etc.  Some populations fluctuate seasonally.  Ours are based
                                         on the spring/summer seasons.)
     [4] - Rare - very difficult to find, maybe only a couple found after repeated visits to the site
     [3] - Uncommon - difficult to find, may not see on every trip but dedicated searching may turn up a few
     [2] - Common - easy to find, should locate a number of them on any given day
     [1] - Abundant - very easy to find, large numbers should be seen on every trip

The frequency rating only applies to the intertidal data.  The subtidal list is incomplete and due to the nature of the data, is not rated for frequency.

Intertidal - I
Subtidal - S 

Port Washington Narrows

Acila castrensis  I  [4]  
Chlamy hastata  I  [4]  (juveniles)
Clinocardium nuttallii  I  [2]
Crassostrea gigas  I  [3]
Entodesma navicula  I  [4]
Gari californica  I  [4]
Glycymeris septentrionalis  I  [2]
Hiatella arctica  I  [4]
Humilaria kennerleyi  I  [4]
Kellia suborbicularis  I  [4]
Leukoma staminea  I  [2]
Macoma balthica  I  [3]
Macoma inquinata  I  [2]
Macoma nasuta  I  [2]
Macoma secta  I  [3]
Modiolus modiolus  I  [4]  
Modiolus rectus  I  [3]
Mya arenaria  I  [3]
Mytilus complex  I  [1]
Nuttallia obscurata  I  [3]
Ostrea lurida  I  [4] 
Panopea generosa  I  [3]
Parvalucina tenuisculpta  I  [4] - only one found
Pododesmus macrochisma  I  [2]
Saxidomus gigantea  I  [1]
Semele rubropicta  I  [3]
Tresus capax  I  [2]
Tresus nuttallii  I  [3]
Venerupis philippinarum  I  [2]
Zirfaea pilsbryi  I,S  [4]  

Acmaea mitra  I  [4] - only one found    
Alia carinata  I  [1]
Amphissa columbiana  I  [4]
Batillaria attramentaria  I  [3]
Callianax baetica  I  [4] - one dead shell  
Callianax biplicata  I  [4] - one dead shell  
Calliostoma ligatum  I  [2]
Ceratostoma foliatum  I  [3]
Cranopsis cucullata  I  [4] - only one found 
Crepidula onyx  I  [3]
Crepidula sp.  I  [3]
Crepipatella lingulata  I  [2]
Cryptonatica aleutica  I  [4] - one dead shell
Diodora aspera  I  [3]

Evalea tenuisculpta  I  [4]
Hima mendica  I  [2]
Lacuna vincta  I  [4]
Lirobittium attenuatum  I  [3]
Lirularia lirulata  I  [4]
Lirularia succincta  I  [4]
Littorina scutulata  I  [1]
Littorina sitkana  I  [2]
Lottia pelta  I  [1]
Lottia aff. rosacea  I  [4]
Lottia scutum  I  [2]
Mangelia crebricostata  I  [4]
Melanella micans  I  [4]   
Neverita lewisii  I  [2]
Nucella lamellosa  I  [1]
Nucella ostrina  I  [2]
Ocinebrina interfossa  I  [4]
Ophiodermella inermis  I,S  [4], was more common
                                                     many years ago

Pomaulax gibberosa  I  [4] - one dead shell
Trichotropis cancellata  I  [4]
Turbonilla sp.  I  [4]
Velutina velutina  I  [4]

Cryptochiton stelleri  I  [4]  
Dendrochiton flectens  I  [4]
Lepidozona mertensii  I  [2]
Lepidozona radians  I  [3]
Leptochiton cf. rugatus  I  [4]
Mopalia kennerleyi  I  [4]

Mopalia lignosa  I  [3]
Mopalia muscosa  I  [3]
Mopalia swanii  I  [4]  
Tonicella lineata  I  [2]


Acteocina culcitella  I  [4]
Aeolidia loui  I  [4]
Hermissenda crassicornis  I  [4]

Port Orchard

Callithaca tenerrima  I  [3]
Chlamys hastata  I  [4] (juveniles)
Clinocardium nuttallii  I  [1]
Compsomyax subdiaphena  S
Leukoma staminea  I  [1]
Lucinoma annulatum  I  [3]
Macoma inquinata  I  [1]
Macoma nasuta  I  [1]
Macoma secta  I  [1]
Modiolus rectus  I  [3]
Nuttallia obscurata  I  [4]
Panopea generosa  I  [2]
Paphia restorationensis  I  [4]
Parvilucina tenuisculpta  I  [3]
Petricola carditoides  I  [4]
Saxidomus gigantea  I  [1]
Solen sicarius  I  [3]
Tresus capax  I  [2]  
Tresus  nuttallii  I  [3]
Venerupis philippinarum  I  [1]


Alia carinata  I  [1]
Alvania compacta  I  [3]
Ceratostoma foliatum  I  [3]
Crepidula onyx  I  [4]
Hima mendica  I  [1]
Lirabuccinum dirum  I  [3]
Lirularia  lirulata  I  [3]
Lirularia  succincta  I  [3]
Littorina scutulata  I  [1]
Littorina sitkana  I  [2]
Lottia pelta  I  [1]
Lottia persona  I  [2]
Neverita lewisii  I  [1]
Nucella lamellosa  I  [2]
Nucella ostrina  I  [1]
Ophiodermella inermis  I  [4]
Turbonilla sp.  I  [4]



Mopalia lignosa  I  [3]
Mopalia muscosa  I  [2]



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This page last revised: 2-25-2018