1. Oregon Tidepool Invertebrates Identification Practice

3. Six-rayed Star Leptasterias hexactis

5. Keyhole Limpet Diadora aspera

7. Black (Katy) Chiton Katherina tunicata

9. Acorn Barnacle Balanus glandula

11. Giant Green Anemone Anthopleura xanthogrammica

13. Clown Nudibranch Triopha catalina

15. Bat Star Patiria miniata

17. Gumboot Chiton Cryptochiton stelleri

19. Rock Louse Ligia sp.

21. Lined Shore Crab Pachygraspus crassipes

23. Two-spotted octopus Octopus bimaculatus

25. Mossy Chiton Mopalia ciliata

27. Red Rock Crab Cancer antennaria

29. Purple Urchin Stongylocentrotus purpuratus

31. California Mussel Mytilus californianus

33. Gooseneck Barnacle Pollicipes polymerus

35. Giant Red Urchin Strongylocentrotus franciscanus

37. Purple Sponge Haliclona permolis

39. Hermissenda

41. Ochre Star Pisaster ochraceous

43. Zonation with Sea Stars and Mussels

45. Aggregating Anemone Anthopleura elegantissima

47. Dogwinkle Nucella sp.

49. Eroded Periwinkle Littorina planaxis

51. Purple Shore Crab Hemigraspus nudus

53. Porcelain Crab Petrolisthes cinctipes

55. Rough Limpet Collisella scabra

57. Black Turban Snail Tegula funebralis

59. Red Sponge Plocamia karykina

61. Spotted Nudibranch Dialula sandiegensis

63. Lined Chiton Tonicella lineata

65. Horned Slipped Shell (small ones on bigger snail) Crepidula adunca

67. Shield Limpet Collisella pelta

69. Hermit Crab Pagurus sp.