Jeff Rotman / Thick horned aeolid / nudibranch {Hermissenda crassicorn} California Pacific USA
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Jeff Rotman / Thick horned aeolid / nudibranch {Hermissenda crassicorn} Pacific Ocean off California, USA
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Alex Mustard / Opalescent nudibranch (Hermissenda crassicornis) crawling over kelp, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.
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Alex Mustard / Kelp greenling (Hexagrammos decagrammus) male, swimming among a kelp forest, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.
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Shane Gross / Opalescent nudibranch (Hermissenda crassicornis) moving across coral reef, Browning Pass, British Columbia, Canada, Pacific Ocean.
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Shane Gross / Opalescent sea slug (Hermissenda crassicornis) on Eelgrass blade (Zostera marina) at night. Nanoose Bay, Vancouver Island, British Columbia, Canada. November.
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David Hall / Opalescent nudibranch (Hermissenda crassicornis) which preys upon stinging hydroids. It retains its prey's stinging cells (cnidocytes) which are transported to the colorful cerrata on nudibranch...
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David Hall / Opalescent nudibranchs (Hermissenda crassicornis) and Mushroom compound ascidians (Distaplia occidentalis). Browning Pass, Queen Charlotte Strait, British Columbia, Canada. September.
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David Hall / Opalescent nudibranch (Hermissenda crassicornis) preys upon stinging hydroids. Browning Pass, Queen Charlotte Strait, British Columbia, Canada. September.