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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.

Acorn Barnacle 1
Balanus glandula
Gooseneck Barnacle
Pollicipes polymerus
Giant Acorn Barnacle 2
Balanus nubilus
Thatched Barnacle 3
Semibalanus cariosus
Dungeness Crab 4
Metacarcinus magister
Purple Shore Crab 5
Hemigrapsus nudus
Striped Shore Crab 6
Pachygrapsus crassipes
Acorn Barnacle 1
Balanus glandula
Giant Acorn Barnacle 2
Balanus nubilus
Gooseneck Barnacle
Pollicipes polymerus
Thatched Barnacle 3
Semibalanus cariosus
Pacific Rock Crab 7
Romaleon antennarium
Dungeness Crab 4
Metacarcinus magister
Pygmy Rock Crab
Glebocarcinus oregonensis
Striped Shore Crab 6
Pachygrapsus crassipes
Red Rock Crab 8
Cancer productus
Purple Shore Crab 5
Hemigrapsus nudus
pubescent porcelain crab 9
Pachycheles pubescens
Yellow Shore Crab 8
Hemigrapsus oregonensis
Thickclaw Porcelain Crab 10
Pachycheles rudis
Bering Hermit 11
Pagurus beringanus
Grainy Hermit Crab 12
Pagurus granosimanus
Hairy Hermit Crab 13
Pagurus hirsutiusculus
Blueband Hermit Crab 14
Pagurus samuelis
Flat Porcelain Crab 15
Petrolisthes cinctipes
Graceful Kelp Crab
Pugettia gracilis
Northern Kelp Crab
Pugettia producta
Cryptic Kelp Crab 2
Pugettia richii
Harford's Isopod 16
Cirolana harfordi
Common Rock Louse 7
Ligia pallasii
Rockweed isopod 17
Pentidotea wosnesenskii
Eelgrass Isopod 12
Idotea resecata
Small Isopod
Synidotea bicuspida
Seaweed Isopod 18
Idotea stenops

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

Photo Credits

  • 1. (c) John D Reynolds, some rights reserved (CC BY-NC), uploaded by John D Reynolds
  • 2. (c) Ken-ichi Ueda, some rights reserved (CC BY), uploaded by Ken-ichi Ueda
  • 3. (c) Alison Young, some rights reserved (CC BY-NC), uploaded by Alison Young
  • 4. (c) hj_west, some rights reserved (CC BY-SA)
  • 5. (c) Dan Hershman, some rights reserved (CC BY)
  • 6. (c) Peter D. Tillman, some rights reserved (CC BY-SA)
  • 7. no rights reserved, uploaded by Scott Loarie
  • 8. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
  • 9. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
  • 10. (c) Ken-ichi Ueda, some rights reserved (CC BY-NC-SA)
  • 11. (c) Paul Norwood, some rights reserved (CC BY-NC), uploaded by Paul Norwood
  • 12. (c) Susannah Anderson, some rights reserved (CC BY-NC-ND)
  • 13. (c) marlin harms, some rights reserved (CC BY)
  • 14. (c) Don Loarie, some rights reserved (CC BY)
  • 15. (c) Don Loarie, some rights reserved (CC BY-NC-SA)
  • 16. no rights reserved
  • 17. (c) 1999 California Academy of Sciences, some rights reserved (CC BY-NC-SA)
  • 18. (c) Tony Iwane, some rights reserved (CC BY-NC), uploaded by Tony Iwane

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