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Sea Slugs - Nudibranchs of California

While land slugs are slimy and eat your vegetables, sea slugs are colorful and awesome. And we have a bunch of them in California. Hooray. This guide currently covers the common nudibranchs, sea hares, sapsucking slugs, and other marine Heterobranchia of our coast, including several non-native ...more ↓

Cadlina sylviaearleae 1
Striped Barrel Snail 2
Rictaxis punctocaelatus
Undescribed Cladobranchia 3
Undescribed Aeolid Nudibranch 3
Aeolidioidea
Doto Form A of Goddard (1996)(undescribed) 4
Doto
Hammerhead Doto 3
Doto amyra
British Columbia Doto 4
Doto columbiana
Seal Doto 4
Doto kya
Lance's Doto 5
Doto lancei
Threaded Nudibranch 6
Pseudobornella orientalis
White Dendronotus 7
Dendronotus albus
Giant Nudibranch 8
Dendronotus iris
Stubby Dendronotid 4
Dendronotus subramosus
Branched Dendronotid 9
Dendronotus venustus
Hancock's Nudibranch 4
Hancockia californica
Hooded Nudibranch 4
Melibe leonina
Goddard's Aeolid 10
Pacifia goddardi
Cumanotus sp. of Goddard and Green (2013) (undescribed) 5
Cumanotus
Fernald's Aeolid 11
Cumanotus fernaldi
Eubranchus species 2 of Behrens and Hermosillo (2005) (undescribed) 12
Eubranchus
Green Balloon Aeolid 2
Eubranchus olivaceus
Homely Aeolid 13
Eubranchus rustyus
Misaki Aeolid 5
Leostyletus misakiensis
Feather Aeolid 5
Fiona pinnata
Rose-pink Cuthona 2
Cuthona divae
Hamann's Aeolid 5
Cuthona hamanni
Long's Aeolid 14
Cuthona longi
Lost Cuthona 7
Cuthona perca
Phoenix Aeolid 4
Cuthona phoenix
Roller's Aeolid 15
Cuthona rolleri
Chocolate Aeolid 2
Cuthonella cocoachroma
Doc's Aeolid 13
Catriona rickettsi
Spotted Lagoon Aeolid 5
Tenellia adspersa
White-crusted Aeolid 5
Tenellia albocrusta
British Columbia Aeolid 4
Tenellia columbiana
Yellow-head Aeolid 2
Tenellia flavovulta
Green Aeolid
Trinchesia virens
Shiny Aeolid 2
Zelentia fulgens
Laguna Aeolid 2
Diaphoreolis lagunae
Vrijenhoek's Nudibranch
Ziminella vrijenhoeki
Smooth-tooth Aeolis 5
Apata pricei
Elegant Aeolid 5
Abronica abronia
Cooper's Aeolid 16
Orienthella cooperi
Three-lined Aeolid 4
Orienthella trilineata
Armina californica 17
Hilton's Aeolid 8
Phidiana hiltoni
Morro Bay Aeolid 18
Emarcusia morroensis
Stearns' Aeolid 19
Austraeolis stearnsi
Red-Headed Aeolid 20
Noumeaella rubrofasciata
Enosima Aeolid 4
Sakuraeolis enosimensis
Undertaker Nudibranch
Aeolidia libitinaria
Warty Shag-rug Nudibranch 5
Aeolidia loui
Shag-rug Nudibranch 21
Aeolidia papillosa
Colorful Aeolid 4
Aeolidiella chromosoma
Moss Landing Aeolid 22
Cerberilla mosslandica
Cerberilla pungoarena 23
Olive's Aeolid 5
Anteaeolidiella oliviae
Zeusia herculea
Baba's Festive Aeolid 4
Babakina festiva
Spanish Shawl 5
Flabellinopsis iodinea
Horned Nudibranch 5
Hermissenda crassicornis
Opalescent Nudibranch 4
Hermissenda opalescens
White-lined Dirona 4
Dirona albolineata
Colorful Dirona 4
Dirona picta
Ringed Janolus 19
Janolus anulatus
Cockscomb Nudibranch 5
Antiopella barbarensis
White-and-Orange-Tipped Nudibranch 5
Antiopella fusca
Keen's Tritonid 2
Tritonicula myrakeenae
Tritonia exsulans 24
Festive Tritonid 2
Tritonia festiva
Black Tiger Nudibranch
Tritonia nigritigris
Giant Orange Tochui 25
Tochuina tetraquetra
Red Dorid 4
Rostanga pulchra
Heath's Dorid 13
Geitodoris heathi
Diaulula lentiginosa 26
O'Donoghue's Dorid 5
Diaulula odonohuei
San Diego Dorid 5
Diaulula sandiegensis
Mimic Dorid 5
Baptodoris mimetica
Hunchback Doris 22
Atagema alba
Mulliner's Dorid 20
Peltodoris mullineri
Noble Dorid 4
Peltodoris nobilis
Leopard Jorunna 26
Jorunna pardus
Two-spotted Dorid 5
Thordisa bimaculata
Red Thordisa 20
Thordisa rubescens
Monterey Dorid 4
Doris montereyensis
Doris odhneri 25
Picken's Dorid 19
Doris pickensi
Tanya's Dorid 14
Doris tanya
White Dorid 5
Conualevia alba
Salt-and-pepper Doris 4
Aegires albopunctatus
Humped Ancula 4
Ancula gibbosa
Ancula lentiginosa 5
Los Angeles Okenia 5
Okenia angelensis
Okenia felis 27
Flat Okenia 5
Okenia plana
Hopkin's Rose 28
Okenia rosacea
Gosliner's Trapania 5
Trapania goslineri
Swift Trapania 29
Trapania velox
Brown Horned Dorid 30
Acanthodoris brunnea
Hudson's Horned Dorid 7
Acanthodoris hudsoni

Edited by Ken-ichi Ueda and Robin Gwen Agarwal, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Sara Thiebaud, some rights reserved (CC BY-NC), uploaded by Sara Thiebaud
  • 2. (c) Ken-ichi Ueda, some rights reserved (CC BY)
  • 3. (c) Robin Gwen Agarwal, all rights reserved, uploaded by Robin Gwen Agarwal
  • 4. (c) Robin Agarwal (ANudibranchMom on iNaturalist), some rights reserved (CC BY-NC)
  • 5. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
  • 6. (c) Robin Agarwal, some rights reserved (CC BY)
  • 7. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
  • 8. (c) Ed Bierman, some rights reserved (CC BY)
  • 9. (c) marlin harms, some rights reserved (CC BY)
  • 10. (c) Dr. Jeff Goddard, some rights reserved (CC BY-SA)
  • 11. (c) Craig Hoover, some rights reserved (CC BY-NC), uploaded by Craig Hoover
  • 12. (c) Jeff Goddard, some rights reserved (CC BY-NC), uploaded by Jeff Goddard
  • 13. (c) Robin Agarwal, some rights reserved (CC BY-SA)
  • 14. (c) jeffhamann, some rights reserved (CC BY-NC), uploaded by jeffhamann
  • 15. (c) Gary McDonald, some rights reserved (CC BY-NC-ND), uploaded by Gary McDonald
  • 16. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
  • 17. (c) Minette, some rights reserved (CC BY-NC)
  • 18. (c) Brenna Green, some rights reserved (CC BY-NC-SA), uploaded by Brenna Green
  • 19. (c) Jeff Goddard, some rights reserved (CC BY-NC)
  • 20. (c) Phil Garner, all rights reserved, uploaded by Phil Garner
  • 21. (c) Stefan, some rights reserved (CC BY-NC), uploaded by Stefan
  • 22. (c) Gary McDonald, some rights reserved (CC BY-NC), uploaded by Gary McDonald
  • 23. (c) passiflora4, some rights reserved (CC BY-NC), uploaded by passiflora4
  • 24. (c) karin fletcher, some rights reserved (CC BY-NC), uploaded by karin fletcher
  • 25. (c) Dan Hershman, some rights reserved (CC BY)
  • 26. (c) Brenna Green, some rights reserved (CC BY-NC-ND), uploaded by Brenna Green
  • 27. (c) Robert H. Lee, some rights reserved (CC BY)
  • 28. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
  • 29. (c) Ken Bondy, some rights reserved (CC BY-NC-SA)
  • 30. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC-SA)

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