Bering Hermit Crab
Pagurus beringanus
(1-3: Monterey State Beach, Monterey)
Blackeyed Hermit Crab
Pagurus armatus
(1: San Carlos Beach, Monterey)
Easily distinguished from other hermit crabs by its large oval black eyes.
Blueband Hermit CrabPagurus samuelis
(1: Whaler's Cove, Point Lobos)
Furry Hermit Crab
Paguristes ulreyi
(1,3,6-8: San Carlos Beach, Monterey / 2: Lovers Cove, Monterey / 4: Monterey State Beach, Monterey / 5: Hen Rock, Santa Catalina Island)
These have grey speckly eyes: (1: San Carlos Beach, Monterey / 2: Indian Rock, Santa Catalina Island)
They fluoresce under blue light: (1: San Carlos Beach, Monterey)
Grainyhand Hermit Crab
Pagurus granosimanus
(1-3,6: Monterey State Beach, Monterey / 4-5: San Carlos Beach, Monterey / 7-8: Whaler's Cove, Point Lobos)
Greenmark Hermit CrabPagurus caurinus
(1: Whaler's Cove, Point Lobos)
Hairy Hermit Crab
Pagurus hirsutiusculus
(1,4: Monterey State Beach, Monterey / 2-3: San Carlos Beach, Monterey)
Hermit CrabPagurus retrorsimanus
(1-5: San Carlos Beach, Monterey)
Hermit CrabPhimochirus californiensis
(1: Ship Rock, Santa Catalina Island / 2: Indian Rock, Santa Catalina Island)
Maroon Hermit CrabPagurus hemphilli
(1,5: Monterey State Beach, Monterey / 2,8: San Carlos Beach, Monterey / 3-4: Coral Street, Monterey / 6-7: Monastery Beach, Carmel-By-The-Sea)
These have black eyes with yellow stripes: (1: San Carlos Beach, Monterey)
The ends of the walking legs are sometimes light-colored: (1: Monterey State Beach, Monterey)
Sometimes they'll gather in large numbers to swap shells: (1-2: Lovers Point, Monterey)
Moonsnail Hermit CrabIsocheles pilosus
(1,3-4,6: Monterey State Beach, Monterey / 2,5: San Carlos Beach, Monterey)
These are all lined up waiting to swap shells: (1: Monterey State Beach, Monterey)
San Diego Hermit Crab
Pylopagurus diegensis
(1-2,7: Monterey State Beach, Monterey / 3-5: San Carlos Beach, Monterey / 6: Sea Landing Cove, Santa Barbara Island)
Distinguished from the greenmark and hairy hermit crabs by its blue first pair of antennae. Previously classified as Haigia diegensis.
Toothshell Hermit Crab
Orthopagurus minimus
(1-2: San Carlos Beach, Monterey / 3: Monterey State Beach, Monterey)
These are orange to red, with one large red claw. They live in tube worm shells.
Tubeworm Hermit Crab
Discorsopagurus schmitti
(1: Whaler's Cove, Point Lobos)
Very small; compare to the tip of the blood star arm.
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