Central Oregon Coast

Lincoln and Lane Cos., OR

Site Description:       

This location encompasses the central coast of Oregon from central Lincoln County to the northern portion of Lane County.  This stretch of coast all has very similar terrain and habitat.  Large rock outcroppings and loose boulders  are interspersed with small stretches of sandy beach.  The rock outcroppings and boulders are predominant.

Google Map
 

                                                    South of Yachats - typical rock outcroppings


                                                   South of Yachats - stretches of sand between the rocks

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

Data is all intertidal unless noted.
  

     Bivalves
Clinocardium nuttallii  [4]
Crassadoma gigantea  [4]
Crassostrea gigas  [4]
Hiatella arctica  [4]
Leukoma staminea [3]
Macoma nasuta  [3]
Macoma secta  [4]
Mytilus californianus  [1]
Mytilus complex  [1]
Nuttallia obscurata  [4]  (only one dead shell, high on the beach)
Penitella penita  [4]
Penitella turnerae  [4]
Petricola carditoides  [3]
Pododesmus macrochisma  [4]
Siliqua patula  [4]
Solen sicarius  [4]
Tresus capax  [4]
Venerupis philippinarum  [2]
Zirfaea pilsbryi  [2]
 
     Gastropods
Acmaea mitra  [3]
Amphissa columbiana  [3]
Caesia fossatus  [4]
Calliostoma ligatum  [3]
Callianax biplicata  [2]
Ceratostoma foliatum  [3]
Chlorostoma funebralis  [2-4, depending on site]
Cryptonatica sp.  [4]
Diodora aspersa  [2]
Hima mendica  [2]
Lirobuccinum dirum  [3]
Littorina scutulata  [1]
Lottia digitalis  [1]
Lottia fenestrata  [2]
Lottia instabilis  [2]
Lottia pelta  [1]
Lottia persona  [2]
Lottia scutum  [2]
Margarites pupillus  [4]
Neostylidium eschrichtii  [1]
Nucella lamellosa  [1-3, depending on site]

Nucella canaliculata  [2]
Nucella ostrina  [1]
Ocinebrellus inornatus  [4 - in certain locations]
Ocinebrina lurida  [4]
Opalia wroblewskyi
 [4]
Tegula pulligo  [4]

     Chitons
Cryptochiton stelleri  [3]
Cyanoplax dentiens  [3]
Katharina tunicata  [2]
Mopalia hindsii  [1]
Mopalia lignosa  [4]
Mopalia muscosa  [3]
Mopalia swanii  [3]
Tonicella lineata  [4]

     Nudibranchs
Abronica abronia  [4]
Acanthodoris nanaimoensis  [4]
Aeolidia papillosa  [4]
Ancula gibbosa  [4]
Cuthonella cocoachroma  [4]
Dendronotus albus  [4]
Dendronotus subramosus  [3]
Dendronotus venustus  [4]
Diaphana californica  [4]
Diaphorodoris lirulatocauda  [4]
Diaulula odonoghuei  [4]
Diaulula sandiegensis  [4]
Dirona albolineata  [4]
Dirona picta  [4]
Doris montereyensis  [4]
Flabellina trilineata  [4]
Hermissenda crassicornis  [3]
Hermissenda opalescens  [4]
Janolus fuscus  [4]
Montereina nobilis  [4]
Polycera atra  [4]  (only in very warm years)
Rostanga pulchra  [3]
Stiliger fuscovittatus  [4]
Tenellia columbiana  [4]
Tenellia flavovulta  [4]
Triopha catalinae  [4]
Triopha maculata  [4]  (only in very warm years)

Onchidella borealis  [4]

 
   

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This page last revised: 9-15-2017