Cloning anemone, to 6 cm in diameter (usually less); column varies  from gray-green to white, often covered with shell debris; tentacle tips green, pink, lavender, or blue.  

Moderately common, mid-intertidal zone; protected outer coast.  Forms extensive clonal aggregations; interclonal aggression produces distinct borders. Possess photosynthetic endosymbiotic zooxanthellae (most specimens are more gray-green & have a greater cover of shell debris on column than those in photograph).

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Oral disc to >15 cm diameter with radiating stripes; green to dark gray-green; warts (verrucae) on column in longitudinal rows, tentacles sometimes flecked or with pinkish tips.  Column covered with shell debris.

Common; mid-intertidal zone to subtidal, protected outer coast; solitary in shallow crevices.  Possess photosynthetic endosymbiotic zooxanthellae (a dinoflagellate).

Geogr. Range: Oregon to Baja
Synonyms: formerly thought to be a solitary form of the cloning Anthopleura elegantissima.
Similar species: Anthopleura xanthogrammica lacks distinct radiating markings on oral disc and its tentacles are more uniform in color; its verrucae are more randomly arranged down its column.

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Oral disc to 20 cm diameter, solid green or with faint radiating lines; tentacles uniform green.  Warts (verrucae) on brown column not obviously in longitudinal rows; usually lacks heavy cover of shell debris on column. 

Common, mid- to low intertidal zones, exposed outer coast, often just below mussel beds.  Possess photosynthetic endosymbiotic zooxanthellae (a dinoflagellate).

Oral disc to 2.5 cm in diameter; brown, greenish, or dull red; with fine longitudinal lines down its column & radiating markings on oral disc; usually with brooded young of different sizes attached to base of column. 

Moderately common but patchy; lower mid-intertidal zone to subtidal, usually on sides of rocks or undersides of overhangs, protected outer coast.  Sequential hermaphrodite (matures first as female & turns into male at larger size).

Geogr. Range: Alaska to southern California
Synonyms:
Similar species: no other anemone in Monterey broods young externally; young Anthopleura sola are greener, lack fine lines on column and do not brood young around base.

Oral disc 1 cm diameter surrounded by distinctive white club-tipped tentacles.  Column & oral disc uniform in color ranging from red to orange, pink, lavender, or buff.   Forms clones that can be distinguished by color.

Moderately common, low intertidal zone to (mostly) subtidal, amongst algae & sides of rocks; protected outer coast.  Large aggregations more common subtidally.

Solitary cup corals 5-8 mm diameter; bright orange with transparent tapered tentacles.  Produces large (1 mm) non-swimming planula larvae same color as adult.

Common, low intertidal zone to (mostly) subtidal on rocks; exposed outer coast. 

Robust feather-like colony to 10 cm tall; brown, orange or tan. Rice grain-like structures (corbulae) on side branches house reproductive individuals (no free-swimming medusae). 

Moderately common, low intertidal zone to shallow subtidal, exposed & protected outer coast. Often epiphytic on Prionitis and other bushy red algae.