Ketchikan
Revillagigedo Island, Alaska
Site Description:
Ketchikan
is on the southwest corner of Revillagigedo Island and faces the
Tongass Narrows. Mountain Point, near Ketchikan, is on the
southern tip of the island and is very rocky with large boulder
outcroppings. Much of the intertidal data comes from this
location.
Google Map
Mountain Point, near Ketchikan
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
Due
to the nature of the data, this list will not be rated for frequency of
occurrence. It is also a very incomplete list.
Intertidal - I
Subtidal - S
Bivalves
Chlamys hastata I,S
Chlamys rubida S
Clinocardium nuttallii I,S
Crassadoma gigantea I,S
Entodesma navicula I,S
Gari californica S
Hiatella arctica I,S
Macoma balthica I
Modiolus modiolus S
Mytilus californianus I
Mytilus trossulus I
Panopea generosa S
Patinopecten caurinus S
Saxidomus gigantea I
Tresus capax I,S
Gastropods
Amphissa columbiana I,S
Boreotrophon multiscostatus I,S
Buccinum plectrum S
Calliostoma annulatum S
Calliostoma ligatum I,S
Calliostoma variegatum S
Ceratostoma foliatum I,S
Cidarina cidaris S
Cryptonatica aleutica I,S
Diodora aspera I,S
Epitonium indianorum I,S
Granulina margaritula I
Latisipho hallii S
Lirobuccinum dirum I
Lirularia lirulata S
Lirularia succincta I,S
Littorina scutulata I
Littorina sitkana I
Lottia pelta I
Lottia persona I
Lottia scutum I
Margarites helicinus I,S
Margarites pupillus I,S
Neostylidium eschrichtii I
Neptunea lyrata S
Neptunea tabulata S
Neptunea smirnia S
Neverita lewisii I,S
Nucella canaliculata I
Nucella lamellosa I,S
Nucella lima I
Nucella ostrina I
Paciocinebrina interfossa I,S
Paciocinebrina lurida I,S
Paciocinebrina sclera S
Puncturella cooperi S
Puncturella cucullata I,S
Puncturella galeata S
Puncturella multistriata S
Scabrotrophon maltzani I,S
Scabrotrophon stuarti S
Scelidotoma bella S
Trophonopsis orpheus S
Nudibranchs
Doris montereyensis I
Chitons
Boreochiton beringensis I,S
Cryptochiton stelleri I,S
Cyanoplax dentiens I
Dendrochiton flectens I,S
Dendrochiton semiliratus
Hanleyella oldroydi S
Katharina tunicata I
Lepidozona interstincta S
Lepidozona mertensii I,S
Lepidozona retiporosa S
Lepidozona willetti S
Leptochiton cf. rugatus I,S
Leptochiton sp. S
Mopalia cirrata I,S
Mopalia egretta S
Mopalia ferreirai I,S
Mopalia hindsii I
Mopalia imporcata I,S
Mopalia kennerleyi I,S
Mopalia lignosa I,S
Mopalia phorminx S
Mopalia sinuata I,S
Mopalia spectabilis I,S
Mopalia swanii I,S
Mopalia vespertina I,S
Placiphorella rufa I,S
Schizoplax brandtii I
Tonicella insignis I,S
Tonicella lineata I,S
Tonicella undocaerulea I,S
Tonicella venusta I,S
Tripoplax trifida I,S
This page last revised: 2-7-2022