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Intertidal Life of Yerba Buena Island

A guide to the invertebrates, seaweeds, and vertebrates found in the intertidal areas of Yerba Buena Island. Data was primarily collected during surveys conducted by the California Academy of Sciences in 2019-2021 and during bioblitzes held in 2017-2021.

Dire Whelk 1
Lirabuccinum dirum
Onyx Slippersnail 2
Crepidula onyx
Carinate Dovesnail 3
Alia carinata
Wrinkled Amphissa 4
Amphissa columbiana
Variegate Amphissa 5
Amphissa versicolor
Mitrella gausapata 6
Lacuna Snails 2
Lacuna
Eroded Periwinkle 7
Littorina keenae
Common Periwinkle 3
Littorina littorea
Checkered Periwinkle 8
Littorina scutulata
Angular Unicorn 9
Acanthinucella spirata
Wrinkled Purple 10
Nucella lamellosa
Striped Dogwinkle 11
Nucella ostrina
Purple Olive Snail 12
Callianax biplicata

Edited by Rebecca Johnson, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) aaronbaldwin, some rights reserved (CC BY), uploaded by aaronbaldwin
  • 2. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
  • 3. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
  • 4. (c) EcologyWA, some rights reserved (CC BY-NC)
  • 5. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
  • 6. (c) SCAMIT, some rights reserved (CC BY-SA)
  • 7. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
  • 8. (c) Femorale, some rights reserved (CC BY-NC)
  • 9. (c) dlbowls, some rights reserved (CC BY-NC), uploaded by dlbowls
  • 10. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
  • 11. (c) Aaron Liston, some rights reserved (CC BY)
  • 12. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)

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