#NUDIVEMBER
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moistmacro.bsky.social
A tiny little Nudibranch for Nudivember.
Tritonia tend to inhabit and munch on whip corals - this one is from Fujairah, UAE
#marinelife #nudivember #nudibranch #invertebrates #seaslugs
A photo of a small white Nudibranch on a bright orange whip coral
November 2, 2026 at 5:46 AM
rebeccagrambo.bsky.social
A month of beauties! #Nudivember
nudibranch.bsky.social Nudibranch ウミウシ Appreciation Society @nudibranch.bsky.social · 2d
Welcome to the first day of #Nudivember!!

Usually I choose lesser known species to feature, but in honor of the big Pokemon anniversary this year, our first species is the Pikachu nudibranch!

Have fun!

www.inaturalist.org/taxa/142790-...
November 1, 2026 at 2:52 PM
itsdannyfly.bsky.social
#Nudivember day 2! Pseudotritonia quadrangularis. Hard to spell and draw!

#itsdannyfly #invertebrate #nudibranch #sciart #natureart
November 3, 2026 at 2:30 AM
saimihanma.northsky.social
This is the third year I've run #Nudivember and it's so satisfying to have all 3 years laid out to see what I've accomplished.
Two printed art zines of the last two years of Nudivember art and a new black sketchbook with Nudivember 2026 written on the front
November 1, 2026 at 11:52 PM
irrlichtwinter.bsky.social
Day Two of #Nudivember
Pseudotritonia quadrangularis
painting of a beige/orange sea slug on light blue background.
November 3, 2026 at 5:03 PM
irrlichtwinter.bsky.social
Day One of #Nudivember 2026
Thecacera pacifica
flat painting of a bright yellow sea slug with blue and black accents on a purple background
November 2, 2026 at 2:21 PM
nudibranch.bsky.social
#Nudivember starts tomorrow!!

Here are the species for each day of November. You can use the prompts to draw, paint, sculpt, embroider, write a poem, song, story or do anything else creative.

Post your creations with the hashtag #Nudivember and I'll repost them all!
the nudivember 2026 prompt list Thecacera pacifica Pseudotritonia quadrangularis Melibe japonica Pleurobranchus peronii Curnon granulosa Tritonia festiva Goniobranchus charlottae Flabellina affinis Janolus eximius Bornella anguilla Tenellia kuiterorum Doto floridicola Polycera hedgpethi Sakuraeolis arcana Tochuina tetraquetra Okenia hallucigenia Carminodoris armata Felimare picta Jason mirabilis Kalinga ornata Kaloplocamus acutus Glossodoris vespa Janolus ignis Phyllodesmium rudmani Limacia ornata Aegires villosus Miamira moloch Goniobranchus annulatus Glossodoris pallida Aldisa theveneti
October 31, 2026 at 6:13 PM
saimihanma.northsky.social
Here's my #Nudivember day 1 of the Pikachu nudibranch!!
A watercolor illustration of the Pikachu nudibranch, is bright yellow with bright blue highlights and black markings on the rhinophores and gills
November 1, 2026 at 7:23 PM
mancjules.bsky.social
#Nudivember is not what I thought it was

*puts pants back on*
November 3, 2026 at 9:50 PM
tanni.bsky.social
#Nudivember

Day 2

Pseudotritonia quadrangularis

#kleineKunstklasse #sciart
Coloured pencil drawing of a sea slug. It’s translucent body has several white knobs along the back and two rhinophores on the head
November 2, 2026 at 7:05 AM
xenomatt.bsky.social
#Nudivember, sexytime edition
xenomatt.bsky.social Matt @xenomatt.bsky.social · Aug 31
It's #Invertefest, it's Saturday night, so... here's a couple of nudibranchs who are having a very good Saturday night indeed!

Chaimberlain's nembrotha (Nembrotha chamberlaini), Anilao

#MarineLife 🌿
Two nudibranchs on an algae-covered rock. One faces towards the camera, the other faces away. They have red rhinopores and gills, and a white body with a large irregular dark green patch on the back. There are small yellow patches around the edges of the green areas. They are joined by a purple tube, which is how nudibranchs mate; they are hermaphrodites and so each uses the tube between them to fertilize the other's eggs. #WildlifePhotography #Wildlife #NaturePhotography #Nature #UnderwaterPhotography #Macro #Divesky
November 3, 2026 at 9:10 PM
itsdannyfly.bsky.social
Since I didn’t do any ‘tobers I thought I’d do a November prompt with #Nudivember!
Starting off with the Pikachu nudibranch, Thecacera pacifica!

#itsdannyfly #invertebrate #nudibranch
November 2, 2026 at 2:07 AM
ryangreenway.bsky.social
Quick Thecacera pacifica for #Nudivember day 1. Playing around with some acrylic markers that I picked up recently. #SciArt
Acrylic paint sketch of a bright yellow nudibranch with blue and black accents.
November 1, 2026 at 7:44 PM
gardentroll.bsky.social
#Nudivember Day 1 w/ my kid:
Thecacera pacifica
Drawing of a yellow nudibranch with blue and black accents A kid’s drawing of a yellow nudibranch with blue accents
November 2, 2026 at 3:57 AM
ryangreenway.bsky.social
#Nudivember day 2, Pseudotritonia quadrangularis. Not many pics of these guys out there it seems. #SciArt
Sketchbook page with an acrylic painting of a blue and white nudibranch against a brown backdrop
November 2, 2026 at 8:13 PM
saimihanma.northsky.social
This has turned out to be the best day because I received goodies from @pikaole.bsky.social. And the most incredible nudibranch stickers just in time for Nudivember so I put one on my sketchbook! Thank you so much, i love them!
A pile of cute animal postcards and stickers including bees, snakes, nudibranchs, shrimp and more A black sketchbook that says Nudivember 2026 with a white nudibranch sticker
November 3, 2026 at 8:24 PM
saimihanma.northsky.social
Pseudotritonia quadrangularis is today's #Nudivember species. They're found in Antarctic waters and it was really fun to paint.
A watercolor and ink illustration of a blue nudibranch on a black background with frilly 'wings' lining is back, tipped in white
November 2, 2026 at 6:34 PM
jftollefson.bsky.social
#Nudivember Day 1 and Day 2

These things are not easy to draw.
A yellow seas slug with blue knobs A sea slug that looks like a piece of bone with teeth 🤷🏼‍♂️
November 3, 2026 at 1:50 AM
tanni.bsky.social
#Nudivember

Day 2 Melibe japonica

#kleineKunstklasse #sciart
Coloured pencil drawing of a nudibranch. It has a milky blue colour, the front looks a bit like a white venus fly trap. On its back are translucent flat rounded protrusions with white dots
November 3, 2026 at 6:22 AM
casswart.bsky.social
And if you really want to do something wild and different, check out @nudibranch.bsky.social, they are hosting #Nudivember !
nudibranch.bsky.social Nudibranch ウミウシ Appreciation Society @nudibranch.bsky.social · 3d
#Nudivember starts tomorrow!!

Here are the species for each day of November. You can use the prompts to draw, paint, sculpt, embroider, write a poem, song, story or do anything else creative.

Post your creations with the hashtag #Nudivember and I'll repost them all!
the nudivember 2026 prompt list Thecacera pacifica Pseudotritonia quadrangularis Melibe japonica Pleurobranchus peronii Curnon granulosa Tritonia festiva Goniobranchus charlottae Flabellina affinis Janolus eximius Bornella anguilla Tenellia kuiterorum Doto floridicola Polycera hedgpethi Sakuraeolis arcana Tochuina tetraquetra Okenia hallucigenia Carminodoris armata Felimare picta Jason mirabilis Kalinga ornata Kaloplocamus acutus Glossodoris vespa Janolus ignis Phyllodesmium rudmani Limacia ornata Aegires villosus Miamira moloch Goniobranchus annulatus Glossodoris pallida Aldisa theveneti
November 1, 2026 at 3:15 PM
xenomatt.bsky.social
#Nudivember
xenomatt.bsky.social Matt @xenomatt.bsky.social · Aug 25
Two nudibranchs for #Invertefest (and #MolluscMonday). The one on the right is Chromodoris willani; the one on the left is either C. lochi or C. Elisabethina. Pic from Anilao.

#MarineLife 🌿
Two nudibranchs on algae-covered rock. The one on the left has a light blue body with a white margin, a black encircling band and a black central stripe; it has yellow rhinopores and gills. The right-hand one has a light blue body with a white marginal band, a black encircling band, and two short black dorsal stripes; its rhinopores and gills are dark blue with white speckles. #UnderwaterPhotography #Macro #Nature #Wildlife #WildlifePhotography #NaturePhotography #Divesky
November 3, 2026 at 6:40 PM
greyeyemagpie.bsky.social
An Orange Clubbed Sea Slug I once met for Nudivember
November 2, 2026 at 6:06 AM
artchallenges.bsky.social
Ihr habt Eure Novemberchallenge noch nicht gefunden? Nicht originell genug? Zu schwer zu zeichnen? Zu farblos?
Dann wird Euch #Nudivember von @nudibranch.bsky.social gefallen.
Es geht um farbenfrohe Nacktschneckenarten (nudibranch species ) dieser Welt.🐌-🏠=✅🖌️

#kleineKunstklasse #Art #ArtChallenge
nudibranch.bsky.social Nudibranch ウミウシ Appreciation Society @nudibranch.bsky.social · 20d
I finished the 2026 #Nudivember prompt list and I'm posting it a bit early in case anyone wants to research any of the species ahead of time. I'll post it again closer to November.
the nudivember 2026 prompt list Thecacera pacifica Pseudotritonia quadrangularis Melibe japonica Pleurobranchus peronii Curnon granulosa Tritonia festiva Goniobranchus charlottae Flabellina affinis Janolus eximius Bornella anguilla Tenellia kuiterorum Doto floridicola Polycera hedgpethi Sakuraeolis arcana Tochuina tetraquetra Okenia hallucigenia Carminodoris armata Felimare picta Jason mirabilis Kalinga ornata Kaloplocamus acutus Glossodoris vespa Janolus ignis Phyllodesmium rudmani Limacia ornata Aegires villosus Miamira moloch Goniobranchus annulatus Glossodoris pallida Aldisa theveneti
October 31, 2026 at 7:31 PM
nudibranch.bsky.social
Today's #Nudivember species is Pseudotritonia quadrangularis, found in Antarctic waters.

seaslugforum.net/find/pseuquad
Photo from Wikipedia en.wikipedia.org/wiki/Pseudot...
A photo of sea slugs that are a translucent brownish and blue with white highlights including two white tipped 'wings' running down the length of their bodies
November 2, 2026 at 3:01 PM
michellejonesart.bsky.social
#Nudivember
Day 1: Pikachu nudibranch!
(Ink, acrylic paint and markers on paper with texture paste. And stickles glitter glue)
A yellow sea slug moving across textured sand. It has black, brown and electric blue accents that make it look a lot like Pikachu.
November 1, 2026 at 7:18 PM