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The Oregon Coast Aquarium Intertidal Species Guide

This guide is meant to assist participants in our BioBlitz events with making accurate identifications of the species they observe.

Gumboot Chiton 1
Cryptochiton stelleri
Black Leather Chiton 2
Katharina tunicata
Whitecap Limpet 3
Acmaea mitra
California Mussel 4
Mytilus californianus
Rough Keyhole Limpet 5
Diodora aspera
Opalescent Nudibranch 6
Hermissenda opalescens
Channeled Dog Winkle 3
Nucella canaliculata
Striped Dogwinkle 7
Nucella ostrina
Lurid Rocksnail 8
Ocinebrina lurida
California Spiny Chiton 5
Nuttallina californica
Gumboot Chiton 1
Cryptochiton stelleri
Gould's baby chiton 5
Lepidochitona dentiens
Woody Chiton 1
Mopalia lignosa
Mossy Chiton 9
Mopalia muscosa
Black Leather Chiton 2
Katharina tunicata
Lined Chiton 10
Tonicella lineata
Hairy Chiton 11
Mopalia ciliata
Veiled Chiton 5
Placiphorella velata
Rough Keyhole Limpet 5
Diodora aspera
Lottia asmi 12
Owl Limpet
Lottia gigantea
Shield Limpet 13
Lottia pelta
Rough Limpet 8
Lottia scabra
Mask Limpet 14
Lottia persona
Rough Limpet 8
Lottia scabra
Fingered Limpet
Lottia digitalis
California Mussel 4
Mytilus californianus
Northern Bay Mussel 15
Mytilus trossulus
Nanaimo Horned Dorid 16
Acanthodoris nanaimoensis
Three-lined Aeolid 17
Flabellina trilineata
Common Grey Sea Slug 18
Aeolidia papillosa
White Dendronotus 17
Dendronotus albus
Monterey Doris 19
Doris montereyensis
San Diego Dorid 5
Diaulula sandiegensis
False Sea Lemon 20
Peltodoris nobilis
Yellow-edged Cadlina 21
Cadlina luteomarginata
Thick-horned Nudibranch 17
Hermissenda crassicornis
White-and-Orange-Tipped Nudibranch 22
Janolus fuscus
Red Dorid 21
Rostanga pulchra
Sea Clown Triopha 16
Triopha catalinae
Painted Wentletrap 3
Epitonium tinctum
Neostylidium eschrichtii 23
Wrinkled Amphissa 24
Amphissa columbiana
Channeled Topsnail 5
Calliostoma canaliculatum
Blue-Ringed Top Snail 3
Calliostoma ligatum
Jeweled Top Snail 12
Calliostoma annulatum
Black Tegula 12
Tegula funebralis
Leafy Hornmouth
Ceratostoma foliatum
Dire Whelk 23
Lirabuccinum dirum
Channeled Dog Winkle 3
Nucella canaliculata
Striped Dogwinkle 7
Nucella ostrina
Wrinkled Purple 5
Nucella lamellosa
Lurid Rocksnail 8
Ocinebrina lurida

Edited by Ian Throckmorton, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Don Loarie, some rights reserved (CC BY)
  • 2. (c) Images by John 'K', some rights reserved (CC BY-NC-ND)
  • 3. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
  • 4. (c) tsoleau, some rights reserved (CC BY-NC-ND)
  • 5. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
  • 6. (c) Ken Bondy, some rights reserved (CC BY-NC-SA)
  • 7. (c) Rosa Laucci, some rights reserved (CC BY-NC), uploaded by Rosa Laucci
  • 8. (c) Liam O'Brien, some rights reserved (CC BY-NC), uploaded by Liam O'Brien
  • 9. (c) Sarah Chinn, some rights reserved (CC BY-NC), uploaded by Sarah Chinn
  • 10. (c) Matt Knoth, some rights reserved (CC BY)
  • 11. (c) pliffgrieff, some rights reserved (CC BY-NC)
  • 12. (c) Femorale, some rights reserved (CC BY-NC)
  • 13. (c) Gena Bentall, some rights reserved (CC BY-NC), uploaded by Gena Bentall
  • 14. (c) Sarka Martinez, some rights reserved (CC BY-NC), uploaded by Sarka Martinez
  • 15. (c) catchang, some rights reserved (CC BY-NC), uploaded by catchang
  • 16. (c) amy lemur, some rights reserved (CC BY-NC-ND)
  • 17. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
  • 18. (c) lhillmann, some rights reserved (CC BY-NC)
  • 19. (c) Ken-ichi Ueda, some rights reserved (CC BY)
  • 20. (c) Robin Agarwal (ANudibranchMom on iNaturalist), some rights reserved (CC BY-NC)
  • 21. (c) matt knoth, some rights reserved (CC BY-NC-ND)
  • 22. (c) Minette Layne, some rights reserved (CC BY-SA)
  • 23. (c) Paul Norwood, some rights reserved (CC BY-NC), uploaded by Paul Norwood
  • 24. (c) EcologyWA, some rights reserved (CC BY-NC)

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