Intertidal Guide for Hearst San Simeon State Park

The intertidal zone bordering the coastline of Hearst San Simeon SP is abundant with a variety of plants and animals. Now you can identify them! Browse the field guide, or use the tags on the left to search by taxonomy. Click each entry for more photos and information about each species. ...more ↓

All 49

Lion's Mane Nudibranch ¹
Melibe leonina

Gumboot Chiton ²
Cryptochiton stelleri

Owl Limpet ³
Lottia gigantea

Giant Rock Scallop ⁴
Crassadoma gigantea

Purple Dwarf Olive ⁵
Olivella biplicata

California Mussel ⁶
Mytilus californianus

California Spiny Chiton ⁷
Nuttallina californica

Fingered Limpet
Lottia digitalis

Green Falsejingle ⁸
Pododesmus macrochisma

Leafy Hornmouth
Ceratostoma foliatum

Pacific Razor Clam ⁹
Siliqua patula

Mossy Chiton ¹⁰
Mopalia muscosa

Channeled Basket Snail ¹¹
Nassarius fossatus

Eroded Periwinkle ¹²
Littorina keenae

Fat Gaper ¹³
Tresus capax

Slippery Moss-snail ¹⁴
Cochlicopa lubrica

Northwest Ugly Clam
Entodesma navicula

Hearty Petricola ¹
Petricola carditoides

Spotted Unicorn ¹⁵
Acanthinucella punctulata

Cooper's Nutmeg ¹⁶
Cancellaria cooperii

Monterey Tegula ⁷
Tegula montereyi

Black Tegula ¹⁷
Tegula funebralis

Coffee Bean Trivia ¹⁸
Pseudopusula californiana

Blue Mussel ¹⁹
Mytilus edulis

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

Photo Credits

1. (c) Donna Pomeroy, some rights reserved (CC BY-NC), uploaded by Donna Pomeroy
2. (c) Don Loarie, some rights reserved (CC BY)
3. (c) tsoleau, some rights reserved (CC BY-NC-SA)
4. (c) Matthew O'Donnell, some rights reserved (CC BY-NC-SA), uploaded by Matthew O'Donnell
5. (c) Femorale, some rights reserved (CC BY-NC)
6. (c) tsoleau, some rights reserved (CC BY-NC-ND)
7. (c) Robin Gwen Agarwal, some rights reserved (CC BY-NC), uploaded by Robin Gwen Agarwal
8. (c) Eric Running, some rights reserved (CC BY-NC), uploaded by Eric Running
9. (c) Rebecca Johnson, some rights reserved (CC BY-NC), uploaded by Rebecca Johnson
10. (c) Sarah Chinn, some rights reserved (CC BY-NC), uploaded by Sarah Chinn
11. (c) pliffgrieff, some rights reserved (CC BY-NC)
12. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
13. (c) Scott Gilmore, some rights reserved (CC BY-NC), uploaded by Scott Gilmore
14. (c) Aydin Örstan, some rights reserved (CC BY-NC-ND)
15. (c) Jerry Kirkhart, some rights reserved (CC BY)
16. (c) Shellnut, some rights reserved (CC BY-SA)
17. (c) Phil Liff-Grieff, some rights reserved (CC BY-NC-SA), uploaded by Phil Liff-Grieff
18. (c) BJ Stacey, some rights reserved (CC BY-NC), uploaded by BJ Stacey
19. (c) Emőke Dénes, some rights reserved (CC BY-SA)

Intertidal Guide for Hearst San Simeon State Park

Lion's Mane Nudibranch 1 Melibe leonina

Gumboot Chiton 2 Cryptochiton stelleri

Owl Limpet 3 Lottia gigantea

Giant Rock Scallop 4 Crassadoma gigantea

Purple Dwarf Olive 5 Olivella biplicata

California Mussel 6 Mytilus californianus

California Spiny Chiton 7 Nuttallina californica

Fingered Limpet Lottia digitalis

Green Falsejingle 8 Pododesmus macrochisma

Leafy Hornmouth Ceratostoma foliatum

Pacific Razor Clam 9 Siliqua patula

Mossy Chiton 10 Mopalia muscosa

Channeled Basket Snail 11 Nassarius fossatus

Eroded Periwinkle 12 Littorina keenae

Fat Gaper 13 Tresus capax

Slippery Moss-snail 14 Cochlicopa lubrica

Northwest Ugly Clam Entodesma navicula

Hearty Petricola 1 Petricola carditoides

Spotted Unicorn 15 Acanthinucella punctulata

Cooper's Nutmeg 16 Cancellaria cooperii

Monterey Tegula 7 Tegula montereyi

Black Tegula 17 Tegula funebralis

Coffee Bean Trivia 18 Pseudopusula californiana

Blue Mussel 19 Mytilus edulis