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Hooded Nudibranch

Melibe leonina

Photo by Arya
Published on Project Noah
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47.8106, -122.377

Field Notes

Description:

This amazing Nudibranch is also known as Lion's mane nudibranch, it is a species of predatory sea slug, specifically a nudibranch, a marine gastropod mollusk in the family Tethydidae.

Habitat:

Found on eelgrass and other seaweeds near low tide and below, and in kelp forest in deeper water.

Notes:

They are carnivorous and hunts for food, while attached to grasses, by extending its oral hood out and downward like a net. When the ventral surface of the hood contacts a small animal, the hood rapidly closes and the fringing tentacles overlap, holding in the prey then forcing the whole animal into the mouth. Prey include amphipods, copepods, mysids, other small crustaceans, small mollusks, small jellyfish and ctenophores, larvae of other invertebrates and in some cases small fish.

Species ID Suggestions

Comments (43)

Thanks Maria and Adarsha.
Congratulations; very cool spotting!
Thank you Luis. It's a fascinating creature and I'm lucky to have gotten SOTD. There were some amazing spottings the last few days!
Thanks Carol and Scott. Scott thanks for moving it to other for me! Wasn't sure.
Congratulations on a great Spotting of the Day! (I moved your spotting from fish to the "other" category.)
Thanks all! António, I agree, nudibranchs do come in amazing colors, patterns, and shapes!
Great spotting! I have to research more about these interesting and bizarre creatures.
Great capture Arya,very cool organism,nudibranchs are amazing in collours and in shapes,like this gorgeous one,congrats on the SOTD and thanks for sharing
Thank you all for the kind comments. Especially all those who I have been meeting these last few weeks. and Nathan, thanks for the ID!
Great to see this got spotting of the day. :)
Great spotting, Arya. A well deserved SOTD - Congratulations ! Also, thanks for the information.
Arya, congratulations, it is very unique! :)
Congrats on this amazing spotting!
wow!!!! great spotting congratulations Arya .....
Congrats on your spotting! I'd like to invite you to join the Mollusca mission and submit your nudibranch (and other mollusk) spottings there.
What a crazy animal. Thanks for the description and congratulations!
Congratulations Arya, your fascinating encounter has earned you Spotting of the Day! The wide flattened appendages of the nudibranch are called cerata and can be easily autotomized (shed as a defensive measure) when it is disturbed by potential predators. This encourages the predator to pursue the detached cerata drifting in the current, rather than the animal itself. Facebook: https://www.facebook.com/photo.php?fbid=10153473263660603&set=a.10152383557885603.943728.10150120463815603&type=1 Twitter: https://twitter.com/projectnoah/status/400105524215029760
Interesting. Never heard about or seen these before! Wish land slugs were as beautiful!
Steve, It was the second time I have seen them. I hit the tide when it was going out and apparently that's when they come out to feed. They were spotted at the Edmonds Marine Sanctuary, it's a 80 acre underwater park that has been built over the last 20 years. We sink boats and other structures to provide a place for marine life to thrive!
This is a very interesting nudibranch. I dive in Oregon but have never seen this kind of nudibranch. What was the conditions and dive area you saw this?
Thanks you guys!
What an amazing view of sea life!
Thank you, that's what I thought when I saw it
Thanks Karen! I couldn't see the colors while at the bottom but once I was heading back in this little guy was floating by and the sun hit him just right! I was amazed by yellow/gold veins.
Thanks Nathan, that was spot on! I figured it was a Nudibranch due to the shape but I was thinking it was a developing Nudibranch. I will try to get some pictures of one eating next time. Emille, thank you!
Wonderful spotting & pic! Thanks for sharing.
Try Lion Nudibranch or Hooded Nudibranch. http://www.wallawalla.edu/academics/departments/biology/rosario/inverts/Mollusca/Gastropoda/Opisthobranchia/Nudibranchia/Dendronotacea/Melibe_leonina.html
It's a marine gastropod, a nudibranch of some type. The branching "veins" are diverticula of the digestive system, you won't find these in jellyfish. Possibly Melibe sp, although I don't know their geography. If it's swimming, it's probably predatory.
Not a clue!! I quit going into the water when I moved to the NW - too cold! I'd check with the local aquariums... you have one near Seattle, and there is the Hatfield marine science center in Newport oregon
Thanks Karen, any idea what it might be?

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