Ficopomatus enigmaticus Image 4
Closeup of
Ficopomatus enigmaticus tubes, showing flanges and flaring openings on some tubes.
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Ficopomatus enigmaticus Image 3 & Key
Ficopomatus enigmaticus tubes. Note the pattern of brown staining, and the unstained white areas around flanges and tube ends.
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Ficopomatus enigmaticus Image 2
Ficopomatus enigmaticus encrusting a tire hanging on the side of a dock at the upper end of the Petaluma River slough, at the northern end of San Francisco Bay.
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Ficopomatus enigmaticus Image 1
Ficopomatus enigmaticus tubes covering a rock in Aquatic Park Lagoon in Berkeley, on the east shore of San Francisco Bay.
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Ficopomatus enigmaticus (Fauvel, 1923)
Ficopomatus enigmaticus builds and lives in white, calcareous
tubes that are about 2 mm in diameter and a couple of centimeters long.
The tubes are somewhat flared at their open ends, and have conspicuous,
collar-like rings or flanges spaced irregularly along their lengths. Older
tubes are typically stained a gold-brown or dark brown along much of their
length, with the areas around the flanges and the flared ends usually remaining
white.
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Diadumene lineata Image 12
An orange anemone, similar to the European species
Diadumene cincta, from Morro Bay. Also found in San Francisco Bay. The pale vertical lines are the ends of internal partitions showing through the column.
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Diadumene lineata Image 11
Diadumene leucolena from San Francisco Bay. The pale vertical lines on the column are not pigment stripes; rather they are the ends of internal partitions showing through the column.
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Diadumene lineata Image 9
Diadumene franciscana from San Francisco Bay, growing on a green seaweed (
Ulva lactuca). Specimens in the bay often have double stripes, as seen here, though specimens with single stripes or no stripes also occur.
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Diadumene lineata Image 8
An unstriped
Diadumene lineata growing on a snail (
Urosalpinx cinerea) in San Francisco Bay.
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Diadumene lineata Image 7
An unstriped
Diadumene lineata with yellow tentacles, in San Francisco Bay.
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Ficopomatus enigmaticus
