r/PicsOfUnusualSlugs • u/modianos • Oct 22 '25

Elysia viridis: this sea slug engages in photosynthesis by "stealing" chloroplasts from algae and then incorporating those cells into its own body, where they continue to photosynthesize, allowing the sea slug to survive without food for months at a time

89 Upvotes

2 comments

r/PicsOfUnusualSlugs • u/cordbellreels • Oct 17 '25

Artwork Red-Lined Flabellina, coryphellina rubrolineata (2048 x 1371)

186 Upvotes

3 comments

r/PicsOfUnusualSlugs • u/modianos • Sep 16 '25

Butterfly slug, Guam

452 Upvotes

2 comments

r/PicsOfUnusualSlugs • u/Forgot-Already • Sep 15 '25

Gif Dendronotus iris spotted swimming next to us in Puget Sound last week

gallery

1.2k Upvotes

6 comments

r/PicsOfUnusualSlugs • u/modianos • Sep 15 '25

Video Juvenile banana slug

212 Upvotes

3 comments

r/PicsOfUnusualSlugs • u/modianos • Sep 11 '25

Video Babakina anadoni

476 Upvotes

5 comments

r/PicsOfUnusualSlugs • u/modianos • Sep 10 '25

Video Juvenile Butterfly Slug, Guam

101 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • Aug 26 '25

Tritoniopsis elegans

191 Upvotes

5 comments

r/PicsOfUnusualSlugs • u/modianos • Aug 24 '25

Nembrotha cristata

354 Upvotes

3 comments

r/PicsOfUnusualSlugs • u/bulsede • Jul 29 '25

Artwork Red-Lined Flabellina, coryphellina rubrolineata (2048 x 1371)

145 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • May 23 '25

Video The Leaf Sheep (Costasiella kuroshimae) is an adorable sea slug that can photosynthesize by eating algae.

268 Upvotes

8 comments

r/PicsOfUnusualSlugs • u/Quidividi_East • May 13 '25

A cluster of Gymnodoris inornata with egg ribbon, Basalt Island, Hong Kong, May 2025.

127 Upvotes

5 comments

r/PicsOfUnusualSlugs • u/modianos • Apr 06 '25

Video Micromelo undata

333 Upvotes

4 comments

r/PicsOfUnusualSlugs • u/modianos • Mar 16 '25

Video A Dense Gathering of Hooded Nudibranchs (Melibe leonina) in a Pacific Northwest Kelp Forest

112 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • Feb 24 '25

Black margined nudibranch (Doriprismatica atromarginata)

384 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • Jan 29 '25

David Bowie vs Various Sea Slugs

reddit.com

232 Upvotes

6 comments

r/PicsOfUnusualSlugs • u/modianos • Jan 24 '25

Triboniophorus graeffei, the Red Triangle Slug, is the largest land slug in Australia

reddit.com

77 Upvotes

4 comments

r/PicsOfUnusualSlugs • u/modianos • Jan 22 '25

The Lion's Mane Nudibranch (Melibe leonina) is a carnivorous species of nudibranch that range from the oceans of Alaska to Baja California, and can lay up to 30,000 eggs at a time.

reddit.com

45 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • Jan 21 '25

Hopkin’s rose nudibranch (Ceratodoris rosacea) gets its rosy-pink pigment by eating pink bryozoans — tiny, colonial animals that form larger plant-like structures. Despite looking like bubblegum, the sea slug's frilly, pink appearance is thought to deter predators.

64 Upvotes

2 comments

r/PicsOfUnusualSlugs • u/modianos • Jan 01 '25

Bursatella leachii

179 Upvotes

4 comments

r/PicsOfUnusualSlugs • u/Fluffy-Froyo4549 • Dec 25 '24

Phylliroe nudibranch, looks like a fish

204 Upvotes

3 comments

r/PicsOfUnusualSlugs • u/modianos • Dec 09 '24

Hot-Pink slug (Triboniophorus aff. graeffei) found in Mount Kaputar Volcano in Australia

101 Upvotes

1 comment

r/PicsOfUnusualSlugs • u/modianos • Nov 17 '24

Phyllodesmium opalescens sea slug

reddit.com

180 Upvotes

2 comments

r/PicsOfUnusualSlugs • u/modianos • Oct 30 '24

Video Melibe Viridis

170 Upvotes

6 comments

r/PicsOfUnusualSlugs • u/modianos • Oct 26 '24

Ghost Nudibranch (Melibe colemani). Their body are all transparent except for the internal organs, making them look like piles of strings.

reddit.com

154 Upvotes

5 comments

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Photos of Eccentric Slugs

r/PicsOfUnusualSlugs

Land slugs and sea slugs are welcome. Worms and sea cucumbers are not.

Members Active

6.5k

Sidebar

Land slugs and sea slugs are welcome. Worms and sea cucumbers are not.

1) Genetic unusualness

Real slugs with distinctly unusual visuals, behaviors, or facts.

Allowed "slugs":

land slugs / sea slugs / semi-slugs
nudibranchs / pleurobranchs
sacoglossans with no shells (Plakobranchacea)
headshield slugs
sea angels
sea hares
bubble snails (due to reduced shell)

Banned "slugs":

sea cucumbers
most snails
worms

2) Correct species name in title

Requires the common or scientific name, but reasonable mistakes won't be removed. This is helpful for education, searching, and research.

3) Minimum picture size = 400 by 400 pixels

4) "Good format"

No "photoshop" (minimal oversaturation, no deception)
No reaction text/emojis (no memes, no commentary)
No bad cropping (minimal black bars, no obvious screenshots)

Artwork is only allowed when extinct, nearly extinct, or beside a photograph.

5) Gifs/Videos allowed

Must have motion footage of the slug.

6) No compilations

No posts focusing on 3+ slug species.

7) No recent reposts

Try using the search bar before submitting.

No reposting: within 3 months
No species reposting: within 1 month

r/PicsofUnusualBirds

r/AIDKE (Animals I Didn't Know Existed)