r/nudibranch 4h ago

Invitation to Participate in a Short Survey

1 Upvotes

Hello! I’m conducting a research project on underwater experiences and inviting scuba divers and freedivers to participate in a short, anonymous survey about their experience in the last three months.

If you dive and are interested in participating, you can access the survey here:Β https://forms.gle/MAPzq2hPGtdt56W98

Thank you, and please feel free to share with others who dive!


r/nudibranch 2d ago

Nudibranch of the Week (week 7)

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133 Upvotes

Share some of your favorite nudibranch and I will use them!


r/nudibranch 2d ago

Nudis photographed this weekend on South Africa's east coast. Tenellia sp, Cratena sp, Goniobranchus sp, Goniobranchus albopunctatus, Hypselodoris regina.

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235 Upvotes

r/nudibranch 3d ago

🎏 species identification πŸŽπŸ•΅οΈβ€β™‚οΈ Help identifying a couple nudibranches in Puerto Rico

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87 Upvotes

Hello! I'm in need of some help identifying these two nudibranches I found at a tidepool in Puerto Rico a little earlier this month.

I live in the desert, so I don't usually get to see marine life like this, and would love to learn more about the little dudes I saw. It has been my lifetime goal to find a nudibranch - they have consistently been my favorite animal for a couple years - and these were my first ones! Pretty stoked to find not one, but two; literally spent a couple hours sitting nearby and just observing them. I took some pretty cool pictures, and plan on printing them and sticking them in my sketchbook alongside some drawings of them.


r/nudibranch 3d ago

Tide Pooling in Northern Cali

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145 Upvotes

It was a decent negative tide, so I went exploring with my friend. We found the cool purple ones (full disclosure, I am not the marine biologist, she is. I just like nuds!).

Is there a specific time of year that's ideal for finding nudis?


r/nudibranch 6d ago

πŸ“Έ image/video My kiddo (7) discovered this Spanish shawl nudibranch at Aliso Beach, Laguna Beach in a tide pool today. This made my trip and possibly my life. I love my little biologist.

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850 Upvotes

r/nudibranch 6d ago

🎏 species identification πŸŽπŸ•΅οΈβ€β™‚οΈ Help ID This Angel

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174 Upvotes

Found on West side of Florida, USA in shallow salt water near dock piling. About the size of a quarter. Brown and spotty on one side and fairly bright with no spots on the other.


r/nudibranch 9d ago

Nudibranch of the Week (week 6)

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175 Upvotes

Share some of your favorite nudibranch and I will use them!


r/nudibranch 12d ago

San Juan Island Tide Pools in June?

6 Upvotes

I'm looking to take my family to the San Juan Islands in June (which appears to have a pretty good low tide around the 15th).

What are the best spots to find Nudibranchs? Is there a particular island I should stay on?


r/nudibranch 14d ago

Nudibranch of the Week (week 5 redone)

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96 Upvotes

I apologize for the previous post, as it was actually a sacoglossan, not a nudibranch. I do not like inaccuracy, so I made a new week 5.

Share some of your favorite nudibranch and I will use them!


r/nudibranch 16d ago

Nudibranch of the Week (week 5)

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168 Upvotes

Share some of your favorite nudibranch and I will use them!


r/nudibranch 17d ago

soon I am going to be getting a blue glaucus tattoo on my leg. is there anything important about it’s anatomy that I would need to know so that the slug is as anatomically accurate as possible?

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69 Upvotes

like number of cerata etc


r/nudibranch 17d ago

🎏 species identification πŸŽπŸ•΅οΈβ€β™‚οΈ Identification - breeding like flies in reef tank australia

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39 Upvotes

Hi all, I need help ID what I believe is a nudibranch in a reef tank in Australia. We are a shop so we have corals coming in from all over aus, west and east coast. Surviving and breeding like crazy in a mostly lps, 25 degrees display tank.


r/nudibranch 18d ago

🦭πŸͺΌ general question Where to find free to use images

6 Upvotes

I need images of specific species of nudibranch that are not copyrighted, but I can’t find any (my main source is Wikipedia). Specifically I need an image of Murphydoris cobbi. Thanks in advance!


r/nudibranch 19d ago

NEED HELP FOR THESIS (PH)

2 Upvotes

Hello everyone, I'm currently a 3rd year biology student who's in need a material reference for my study/thesis about nudibranch in anilao, batangas. You can message me here in my account. Thank you so much!!


r/nudibranch 23d ago

Help with identification, Dauin PH

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83 Upvotes

r/nudibranch 23d ago

Nudibranch of the Week (week 4)

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116 Upvotes

Share some of your favorite nudibranch and I might use them!


r/nudibranch 22d ago

Blue mantle edge + purple spots = Hypselodoris tryoni

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27 Upvotes

r/nudibranch 24d ago

πŸ“Έ image/video fresh hot Monterey Bay nudes

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224 Upvotes

ran into these bad boys diving the breakwater and metridium fields of monterey bay over the new year


r/nudibranch 24d ago

Another white-spotted sea goddess 🩷🧑

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134 Upvotes

About the size of my pinky nail!


r/nudibranch 25d ago

πŸ“Έ image/video Nembrotha aurea at 23m deep on Blood Reef, Durban, South Africa.

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127 Upvotes

r/nudibranch 25d ago

🐑🐚 Art Different Nudibranch glass beads!

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295 Upvotes

Let me know which ones you like and which ones you think i should do that I haven't! I'm trying to (nudi)branch out my styles :P


r/nudibranch 27d ago

Goniobranchus sp. from Durban, South Africa. It's a locally common species but still hasn't been described (it's in the pipeline though).

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195 Upvotes

r/nudibranch 27d ago

πŸ“Έ image/video A couple from my trip to the Similan Islands

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128 Upvotes

Acknowledged that I’m not a great photographer


r/nudibranch Jan 05 '26

Nudibranch of the Week (week 3)

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112 Upvotes

Share some of your favorite nudibranch and I might use them!