Nov 2, 2025
Hey y'all it's Nudivember (thanks to the Nudibranch Appreciation Society for the inspiration and prompts)! Let's begin with Cuthona anulata, or forbidden shirataki noodles.
seen from United States
seen from Netherlands
seen from Brazil
seen from Germany
seen from Singapore
seen from United States
seen from Malaysia
seen from China
seen from Costa Rica
seen from United Kingdom
seen from United States
seen from Albania
seen from Japan
seen from Malaysia
seen from United States
seen from Iraq
seen from China
seen from Iraq
seen from China
seen from Jordan
Hey y'all it's Nudivember (thanks to the Nudibranch Appreciation Society for the inspiration and prompts)! Let's begin with Cuthona anulata, or forbidden shirataki noodles.
Forgot to post day 3 on Tumblr, so you get two nudibranches at once today!
First one is Halgerda theobroma
Second is Ardreadoris electra
Nudivember prompt list is from Saima Hanma (@nudibranch on bsky)
Happy Nudivember!! Here are two of my favorite sea slugs to celebrate! The festive sea slug (top) and the pink dorid nudibranch (bottom).
---
I do not and will not ever consent to having my work fed to AI.
Nudivember Days 5, 6, and 7 (because I am horribly behind)
Day 5- Tambja affinis
Day 6- Diaphorodoris mitsuii
Day 7- Hypselodoris obscura
Day 2 of Nudivember- Cerebilla tanna
Prompt list from Saima Hanma on Bluesky
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.
Nudivember day 23: Okenia mediterranea, what you'd get if a sea witch turned Scorbunny into a slug
Nudivember day 29: Halgerda brycei, the forbidden pineberry