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| Hedgehog hydroid cluster (Hydractinia milleri), San Miguel Island. 2 inches, Image 01036 |
Cluster of lightbulb tunicates, Clavelina huntsmani, San Diego, California. 2.5 inches, Image 02542 |
Christmas tree worm in hard coral, Roatan, Honduras. 1 inch, Christmas tree worm (annelid), Spirobranchus sp., Image 02538 |
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| The salp Cyclosalpa affinis is a pelagic tunicate. See zooplankton, Salp (pelagic tunicate) chain, Image 02495 |
Kelp encrusting bryozoan on giant kelp blade (Membranipora tuberculata, Macrocystis pyrifera), San Clemente Island, California, 1.5 inches, Membranipora sp, Macrocystis pyrifera, Image 02540 |
Hippodiplosia insculpta, Fluted bryozoan, San Miguel Island, California, Image 02566 |
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| Lacy bryozoan, Phidolopora labiata (formerly P. pacifica), San Miguel Island, California, 1.5 inches, Image 02539 |
Ostrich plume hydroid, Aglaophenia struthionides, San Miguel Island, California, 2 inches, Ostrich-plumed hydroid, Ensenada, Image 02541 |
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| Feather duster worm, Eudistylia polymorpha, San Miguel Island, Image 01054 |
Feather duster worm, Eudistylia polymorpha, San Miguel Island, Image 02544 |
Feather duster worms, Eudistylia polymorpha, San Miguel Island, Image 02545 |
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Variations seen among Eudistylia polymorpha (feather duster worm), San Miguel Island, California
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| Serpula vermicularis, Serpulid worm showing white calcareous tube, San Miguel Island, California, Image 02563 |
Christmas tree worms, Spirobranchus spinosus, San Miguel Island, California, Image 02565 |
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