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Opisthobranchs & Nudibranchs of the World

Opisthobranchs & Nudibranchs of the World

Document your opisthobranch and nudibranch encounters by taking photographs and adding descriptive notes. Explain as much as you can about the location and conditions in the place where it was found. Sign in to join mission

Opisthobranchs & Nudibranchs of the World
Created by

The MnMs

Website 349 participants 1,190 spottings

Opistobranchs are a large and diverse group of marine gastropods. They include several types of sea slugs: sea hares, sea angels, sea butterflies, and many families of Nudibranchia. They exist in an impressive diversity of sizes, colors and shapes and are distributed in sea waters all over the world. Species exist that are adapted to different climates, salinity, or depth. Help us gather information about these maginificent creatures by adding your spottings here in this mission.

Opisthobranchs & Nudibranchs of the World

Recent Spottings

Clumpy Nudibranch Allen Hoof 3 3 Clumpy Nudibranch
Bluegirdle Angelfish AlbertKang 8 0 Bluegirdle Angelfish
Nudibranch AlbertKang 2 2 Nudibranch
Nudibranch AlbertKang 3 0 Nudibranch
Hairy Seahare AlbertKang 6 2 Hairy Seahare
Hooded Nudibranch Machi 1 0 Hooded Nudibranch
Ringed sap-sucking slug hannahd123 1 1 Ringed sap-sucking slug
Desirable Flabellina AlbertKang 16 6 Desirable Flabellina
Felimare picta Marek Koszorek 2 0 Felimare picta
Caloria elegans Marek Koszorek 1 0 Caloria elegans
Tyron Nudibranch + Shrimp AlbertKang 5 3 Tyron Nudibranch + Shrimp
Nudibranch AlbertKang 17 13 Nudibranch
Maritime Hypselodoris The MnMs 4 0 Maritime Hypselodoris
Coleman's Melibe AlbertKang 8 2 Coleman's Melibe
Leopard Nudibranch Brian38 2 2 Leopard Nudibranch
Nudibranch AlbertKang 4 1 Nudibranch
Goniobranchus coi Marek Koszorek 2 0 Goniobranchus coi
Nembrotha kubaryana Marek Koszorek 2 0 Nembrotha kubaryana
Tambja morosa Marek Koszorek 1 0 Tambja morosa
Phyllodesmium briareum Marek Koszorek 1 0 Phyllodesmium briareum
Phyllidiopsis phiphiensis Marek Koszorek 1 0 Phyllidiopsis phiphiensis
Hypselodoris kanga Marek Koszorek 1 0 Hypselodoris kanga
Coryphellina Marek Koszorek 6 1 Coryphellina
Phyllidia marindica Marek Koszorek 3 0 Phyllidia marindica
Nudibranch AlbertKang 14 6 Nudibranch
Phyllidia ocellata Marek Koszorek 4 0 Phyllidia ocellata
Felimida krohni Marek Koszorek 10 0 Felimida krohni
Common Gray Sea Slug Machi 1 0 Common Gray Sea Slug
Nudibranch AlbertKang 3 0 Nudibranch
Nudibranch AlbertKang 4 2 Nudibranch
Nudibranch AlbertKang 1 0 Nudibranch
Phyllidia flava Marek Koszorek 1 0 Phyllidia flava
Sea Lemon Machi 1 0 Sea Lemon
Phyllidia varicosa JordiPrats 4 3 Phyllidia varicosa
Phyllidia ocellata Marek Koszorek 9 0 Phyllidia ocellata
Flatworm AlbertKang 6 2 Flatworm
Nudibranch AlbertKang 4 0 Nudibranch
Nudibranch AlbertKang 6 0 Nudibranch
Felimare orsinii Marek Koszorek 1 0 Felimare orsinii
Felimare fontandraui Marek Koszorek 6 2 Felimare fontandraui
Crested aeolis Marek Koszorek 13 6 Crested aeolis
Aglaja tricolorata Marek Koszorek 2 0 Aglaja tricolorata
Edmundsella pedata Marek Koszorek 2 0 Edmundsella pedata
Peltodoris atromaculata Marek Koszorek 2 0 Peltodoris atromaculata
Chromodoris annae Marek Koszorek 1 0 Chromodoris annae
Chromodoris magnifica Marek Koszorek 1 0 Chromodoris magnifica
Goniobranchus geometricus Marek Koszorek 0 0 Goniobranchus geometricus
Ceratosoma trilobatum Marek Koszorek 0 0 Ceratosoma trilobatum
Goniobranchus geminus Marek Koszorek 12 5 Goniobranchus geminus
Dermatobranchus ornatus Marek Koszorek 1 0 Dermatobranchus ornatus

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Brian38 hannahd123 Oscar Neto AgnesAdiqueTalavera
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BenAbramovitz jroomjack Khaidyn .D KateRoperCamp
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Ashutosh Dudhatra JordiPrats João Pedro Silva ClaudiaGalindo
Jim Nelson Gabe39 SanciaMatthyssen EvaV
shanestevenson Narjess andreweleighton danaksimon5
PixieZaz JennytheTurtle Calypso78 Daniele2
ChristosKazilas Jellis MikeUnderwater WhitneyFish
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