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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
Whitecap Limpet 13
Acmaea mitra
Black Limpet 13
Lottia asmi
Fingered Limpet Complex 14
Lottia digitalis
Owl Limpet 15
Lottia gigantea
File Limpet 3
Lottia limatula
Boreal limpet 16
Lottia paradigitalis
Shield Limpet 10
Lottia pelta
Rough Limpet 17
Lottia scabra
Plate Limpet 3
Lottia scutum
Channeled Topsnail 3
Calliostoma canaliculatum
Glorious Topsnail 3
Calliostoma gloriosum
Black Tegula 18
Tegula funebralis
Taylor's Seahare 19
Phyllaplysia taylori
San Diego Dorid 3
Diaulula sandiegensis
Red Dorid 20
Rostanga pulchra
Monterey Doris 5
Doris montereyensis
Enosima Aeolid 3
Sakuraeolis enosimensis
Opalescent Nudibranch 3
Hermissenda opalescens
Black-tipped Spiny Dorid 3
Acanthodoris rhodoceras
Hedgpeth's Dorid 21
Polycera hedgpethi

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

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  • 3. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
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  • 5. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
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  • 12. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC)
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  • 19. (c) Robin Agarwal (ANudibranchMom on iNaturalist), some rights reserved (CC BY-NC)
  • 20. (c) Ken-ichi Ueda, some rights reserved (CC BY)
  • 21. (c) Ian Scholey, some rights reserved (CC BY-NC), uploaded by Ian Scholey

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