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A nudibranch (sea slug) that has a wavy white and deep purple color pattern with bright yellow spots

A nudibranch (sea slug) that has a wavy white and deep purple color pattern with bright yellow spots

I was buried with work and completely missed #Nudivember, but here is a late contribution: Hypselodoris imperialis, my favorite new-to-me slug from teaching a field course in the Society Islands earlier this year.

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Drawing of nudibranch which looks like a fluffy orange blob with a snowflake on top. The species is acanthodoris lutea. It has two orange feelers at the front. At the back, it has a circle of white gills which look like a snow flake. The background is blue.

Drawing of nudibranch which looks like a fluffy orange blob with a snowflake on top. The species is acanthodoris lutea. It has two orange feelers at the front. At the back, it has a circle of white gills which look like a snow flake. The background is blue.

Another late nudibranch for #Nudivember: Day 26 Acanthodoris lutea, also called the orange peel nudibranch.

Colored pencil on toned paper. #traditionalart

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Traditional drawing of a colourful seaslug called Mexichromis macropus. Its body is mostly white. The border of its mantle is decorated with orange stripes. It has purple bumps on its back. The rhinophores, gills, and tail end also have purple accents. The style aims for simple yet realistic.

Traditional drawing of a colourful seaslug called Mexichromis macropus. Its body is mostly white. The border of its mantle is decorated with orange stripes. It has purple bumps on its back. The rhinophores, gills, and tail end also have purple accents. The style aims for simple yet realistic.

A terribly late mexichromis macropus for #Nudivember day 24. I love these little sea creatures. They are so cute.

I want to turn this one into a nudibranch mermaid.

Watersoluble markers and waterproof liner. #traditionalart

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the cover which says 2025 nudivember: 30 days of nudibranchs with half a nudibranch against a black watercolor background, the nudi is a gradient of purple to pink with yellow spots

the cover which says 2025 nudivember: 30 days of nudibranchs with half a nudibranch against a black watercolor background, the nudi is a gradient of purple to pink with yellow spots

a page from the book of nembrotha cristata featuring a watercolor illustration of a black sea slug with green spots, the text reads:
Nudibranchs often match their food, either for camouflage or because their food actively colors them, and this green species feeds on a green compound tunicates on coral reefs in the Indo-West Pacific where they grow up to 50mm long.

a page from the book of nembrotha cristata featuring a watercolor illustration of a black sea slug with green spots, the text reads: Nudibranchs often match their food, either for camouflage or because their food actively colors them, and this green species feeds on a green compound tunicates on coral reefs in the Indo-West Pacific where they grow up to 50mm long.

Here's the cover and a sample page of my 2025 #Nudivember ebook zine.

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Preview
Nudivember 2025: 30 Days of Nudibranchs by Saimi An art zine featuring watercolor illustrations of 30 different nudibranchs from around the world

I've finished the ebook version of my 2025 #Nudivember zine! I put it up on Itch since my webshop is currently closed.

This is my first time listing anything there so I hope I did it right. If I have time this week I'll add my other zines before I leave.

saimi.itch.io/nudivember-2...

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A yellow green background, with a gray nudibranch. The nudibranch gets more transparent around its edges, and is covered in black spots.

A yellow green background, with a gray nudibranch. The nudibranch gets more transparent around its edges, and is covered in black spots.

#Nudivember Day 30

(Acrylic gouache, Neocolor 2 crayons and colored pencil)

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A drawing of a grey nudibranch with black spots, rhinophores, and gills.

A drawing of a grey nudibranch with black spots, rhinophores, and gills.

And finally, nothing says #nudivember like December, and we should all marvel at Hallaxa fuscescens, and its perfect little creature energy.

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A yellow nudibranch with black lines. The background is red and orange, with blue paper showing through on the edges.

A yellow nudibranch with black lines. The background is red and orange, with blue paper showing through on the edges.

#Nudivember Day 27

(Posca markers and acrylic gouache on blue pastel paper)

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A gray nudibranch with black rhinophores, black gills, and black spots on its mantle

A gray nudibranch with black rhinophores, black gills, and black spots on its mantle

#Nudivember concludes with Hallaxa fuscescens, a little black bunny.
Nudibranchs come in all shapes, sizes, and colors! Let them be a reminder that no creature design is too weird to exist.

#nudibranch #polkadots #blackrabbit #art #SciArt

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A watercolor illustration of a nudibranch sea slug that's black with darker black spots

A watercolor illustration of a nudibranch sea slug that's black with darker black spots

Here's the final day of #Nudivember

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Video

It's done!!! 30 days of #Nudivember. 30 glorious nudibranchs. One tired artist.

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It's the FINAL DAY of #Nudivember! And our last species to end the month is Hallaxa fuscescens.

Thank you to everyone who participated this year! I hope you had fun and enjoyed the nudibranchs and artwork.

Info: www.seaslugforum.net/find/22064
Photos: www.inaturalist.org/taxa/548310-...

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A nudibranch moving toward the camera over algae-covered rock. It is white, with a dark brown back and a black marginal band; it has black rhinopores and gills. The mantle is raised at the front so the oral tentacles are visible.

#UnderwaterPhotography #MacroPhotography #Macro #Wildlife #WildlifePhotography #Nature #NaturePhotography

A nudibranch moving toward the camera over algae-covered rock. It is white, with a dark brown back and a black marginal band; it has black rhinopores and gills. The mantle is raised at the front so the oral tentacles are visible. #UnderwaterPhotography #MacroPhotography #Macro #Wildlife #WildlifePhotography #Nature #NaturePhotography

One last #Nudivember post. Here is Doriprismatica atromarginata coming to check you out. Most places seem to call this a black-margined nudibranch (rather boring) but I also saw it referred to as a cheesecake nudibranch, which is a much better name!

#MarineLife #Invertebrates 🌿

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Nudibranch in a tidepool mainly showing its body is covered with cerrata (tube like structures). Body and rhinopores are white, cerata are pink

Nudibranch in a tidepool mainly showing its body is covered with cerrata (tube like structures). Body and rhinopores are white, cerata are pink

Same nudibranch, different angle. It's climbed up and the cerata are spread out and tipped with white

Same nudibranch, different angle. It's climbed up and the cerata are spread out and tipped with white

Haven't posted yet for #Nudivember so I better!

The only nudibranch I have ever found in New England. Not sure, but it might be Facelina bostoniensis 🦑

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Aeolidiella sp. against black background. It’s curled up a bit and has two rows of groups of 4 brownish cerata.

Aeolidiella sp. against black background. It’s curled up a bit and has two rows of groups of 4 brownish cerata.

I thought, I’d join in and post a nudibranch for the last day of #Nudivember. Here‘s Aeolidiella sp. I found in Spain in a rock pool
#MarineLife

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A white nudibranch covered in orange-tipped papillae and sporting black gills and rhinophores

A white nudibranch covered in orange-tipped papillae and sporting black gills and rhinophores

#Nudivember day 29: Halgerda brycei, the forbidden pineberry
#nudibranch #seaslug #bumpy #art #SciArt

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fat purple sea slug with big yellow spots

fat purple sea slug with big yellow spots

#Nudivember Day 10- Felimida luteorosea

🐡 🐌 🐠🦑 Last one for today, I think :)

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Day 29 of #Nudivember and I'm so so so tired.

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An orange nudibranch on a mottled and textured reddish brown and yellow green background.

An orange nudibranch on a mottled and textured reddish brown and yellow green background.

#Nudivember Day 26

So round! 🍊
(Acrylic gouache and posca markers on a background of paint and collage)

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Digital drawing of a semi-transparent sea slug with many small branches coming off of its back

Digital drawing of a semi-transparent sea slug with many small branches coming off of its back

#Nudivember Day 09- Tritonicula myrakeenae

🐡 🐌 🐠🦑

I did phone this one in bc drawing nudibranches w this shape is very frustrating for me. And I think I like this result better anyway! Yay for learning to take art shortcuts

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Digital illustration of a somewhat eye-searing sea slug with many colors

Digital illustration of a somewhat eye-searing sea slug with many colors

#Nudivember Day 08- Cerberilla ambonensis

🐡 🐌 🐠🦑

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Top-down view of the lid of a box, approx 30cmx15cm, background fabric is mid-green. A Glaucus atlanticus is embroidered in gold thread, with a round jellyfish next to it. The jellyfish has a raised, ruched area of silver fabric in the centre

Top-down view of the lid of a box, approx 30cmx15cm, background fabric is mid-green. A Glaucus atlanticus is embroidered in gold thread, with a round jellyfish next to it. The jellyfish has a raised, ruched area of silver fabric in the centre

Nearly missed #Nudivember!
We found this amazing fabric box my Granny embroidered-Glaucus atlanticus and prey-while helping Grandad with his move into a care home

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A drawing of a white nudibranch with black feathered rhinophores, red-tipped cerata, and black gills that look like a small leafless bush.

A drawing of a white nudibranch with black feathered rhinophores, red-tipped cerata, and black gills that look like a small leafless bush.

It's the penultimate #nudivember and today is Halgerda brycei, who has a built-in shrub.

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Our next to last #Nudivember species is Halgerda brycei

Info: www.seaslugforum.net/showall/halg...
More info: slugsite.us/bow/nudwk289...
Photos: nudipixel.net/photo/00012629
museum.wa.gov.au/online-colle...

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This nudibranch has a white translucent body with small white dots a white line along the foot and a yellow line on the mantle. It is moving across a bed of algae

Diaphorodoris luteocincta

This nudibranch has a white translucent body with small white dots a white line along the foot and a yellow line on the mantle. It is moving across a bed of algae Diaphorodoris luteocincta

The 29th day of #Nudivember brings me to my last post for a few days as I will not be near a computer nor my stash of nudi pictures. Sorry about that. When I do return, I will be busy with inverts. So please stand by #MarineLife

This is a little guy again but I did not have time to grab my compass

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Preview
A rare photosynthesizing sea slug has been found off N.S. Here's why scientists are excited | CBC News Researchers believe Elysia chlorotica holds promise for medical advances, but it's been too elusive to study.

A fun finale for the #nudivember festivities! Isn't it pretty? And it does look just like it has a leaf for a cape!
Alt text for article photo: A black sea slug has a flat deeply veined bright green leaf-like appendage unfurled along its back.
#SeaSlugs #nudibranchs #CanadianCritters

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A white nudibranch with black horn-like rhinophores and black-tipped orange cerata covering its back

A white nudibranch with black horn-like rhinophores and black-tipped orange cerata covering its back

#Nudivember day 28: Favorinus tsuruganus, the goat with the golden fleece (check out those rhinophores!)

#nudibranch #seaslug #art #chrysomallos

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Today's #Nudivember. Only two left!!

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A nudibranch crawling away from the camera over algae-covered rock. It is pale blue with a white marginal band, yellow rhinopores and gills, and irregular black stripes on the body

#UnderwaterPhotography #Macro #Wildlife #Nature

A nudibranch crawling away from the camera over algae-covered rock. It is pale blue with a white marginal band, yellow rhinopores and gills, and irregular black stripes on the body #UnderwaterPhotography #Macro #Wildlife #Nature

Nudibutt!

#Nudivember #Invertebrates #MarineLife 🌿

Chromodoris sp., but I really don't know which species

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A drawing of a grey blob with a pinkish centre and white spots. It has a tiny smily face drawn next to it.

A drawing of a grey blob with a pinkish centre and white spots. It has a tiny smily face drawn next to it.

A drawing of a long yellow nudibranch with black rippling stripes. Its body is extremely lumpy and craggy, like it has grown out of a cliff face.

A drawing of a long yellow nudibranch with black rippling stripes. Its body is extremely lumpy and craggy, like it has grown out of a cliff face.

A drawing of a nudibranch with a white body and front rhinophores, densely-packed red cerata with black tips, a red head, and black upper rhinophores with many pointed branches.

A drawing of a nudibranch with a white body and front rhinophores, densely-packed red cerata with black tips, a red head, and black upper rhinophores with many pointed branches.

A drawing of a rounded orange nudibranch with reddign rhinophores and pale pink gills. It is covered in very small pointed bumps.

A drawing of a rounded orange nudibranch with reddign rhinophores and pale pink gills. It is covered in very small pointed bumps.

It was unprecedented. They said it couldn't be done.

Yet, here is a quadruple #nudivember extravaganza featuring the enigma that is Hallaxa cryptica, the living banana chocolate dessert Notodoris minor, the tiniest dragon Favorinus tsuruganus and the glittery orange sugarlump Acanthodoris lutea.

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