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This closer view of the colony shows the polyps (within their hydrothecae) along the two sides of each branch. Notice that the branches are about twice as wide as the hydrothecae are.
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This view of the edge of the colony shows how the stolons weave together to make a solid mat.
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2012 California Academy of Sciences
CalPhotos
Zoanthidae
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2012 California Academy of Sciences
CalPhotos
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Public Domain 2011 Randolph Femmer Courtesy of life.nbii.gov
NBII images
Category hierarchy: Biomes | Water & Wetlands | Coastal EnvironmentsDescription: Portuguese man o' war washed onto a sandy beach.Capture device: Camera: FinePix S3100Capture details: 6x optical zoom lens; Effective pixels 4.0 millionOriginal date: 20100407|||061506Locality: Latitude: 2.619202800000000e+001; Longitude: -8.009643260000000e+001
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Hydropolyp, Ectopleura larynx close up
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Sarsia tubulosa (M. Sars, 1835)
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The individual hydrothecae can be clearly seen in this closer view. The colony is a bit fouled by diatoms and other debris.
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Hydractinia laevispina growing as an extension to a small gastropod shell inhabited by the hermit crab Labidochirus splendescens. Collected from 60-100 m depth in the San Juan Channel, July 2010. The shell is to the bottom right and the extension which has grown beyond the shell is to the upper left. Total colony width about 2 cm. (Photo by: Dave Cowles )
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2012 California Academy of Sciences
CalPhotos
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2012 California Academy of Sciences
CalPhotos
Porifera
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Public Domain 2011 Randolph Femmer Courtesy of life.nbii.gov
NBII images
Category hierarchy: Biomes | Water & Wetlands | Coastal EnvironmentsDescription: Portuguese man o' war washed onto a sandy beach.Capture device: Camera: FinePix S3100Capture details: 6x optical zoom lens; Effective pixels 4.0 millionLocality: Latitude: 2.619202800000000e+001; Longitude: -8.009643260000000e+001
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Solo Hydropolyp, Tubularia species
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Plotocnide borealis Wagner, 1885
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In this photo of an individual hydrotheca, the darker operculum which is attached on the side nearest the stalk can be seen.
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This photo taken in transmitted light highlights many of the features of the hydromedusa.
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2012 California Academy of Sciences
CalPhotos
Porifera
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2012 California Academy of Sciences
CalPhotos
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Public Domain 2011 Randolph Femmer Courtesy of life.nbii.gov
NBII images
Category hierarchy: Animals | CnidariansDescription: Portuguese man o' war washed ashore. Capture device: Canon EOS DIGITAL REBEL XTiCapture details: Canon 75-300mm zoom lenseLocality: Latitude: 2.722254740000000e+001; Longitude: -8.018115670000000e+001
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Solo Hydropolyp, Tubularia species
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Euphysa flammea (Linko, 1905)
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Abietinaria inconstans colony, about 8 cm tall, found at 90 m depth in the San Juan Channel. This colony is heavily encrusted with small bryozoans and tubeworms. (Photo by: Dave Cowles, August 2014)