Intertidal Life of Orange County, California

(Click on images or names to open)

126 species illustrated. Yellow background, introduced species

Photographed and compiled by Peter J. Bryant (pjbryant@uci.edu
Department of Developmental and Cell Biology, University of California, Irvine, CA 92697

Sponges List    

Breadcrumb Sponge, Halichondria panicea

Sponge

Sponge
   
Cnidarians

Moonglow Anemone,
Anthopleura artemisia?

Aggregating Anemone,
Anthopleura elegantissima

Solitary Green Anemone, Anthopleura sola

Halecium sp.

Striped Anemone,
Haliplanella luciae

Red gorgonian,
Lophogorgia chilensis

Glassy Plume Hydroid,
Plumularia setacea

By-the wind Sailor,
Velella velella

Unidentified Cnidarian
 
Polychaetes Common Subtidal Polychaetes of Southern California's Embayments
Cirratulidae Eunicidae Glyceridae  

Medusa worm

Eunice sp.

Marphysa sanguinea

Blood worm
 
Nereidae Lumbrineridae Polynoidae
(Scale Worms)
 

Nereis latescens

Nereid Worm

Lumbrinerid Worm

Fifteen-scaled Worm,
Harmothoe imbricata
 
Sabellidae   Sabellaridae

Feather Duster Worm,
Megalomma sp.

Feather Duster Worm
(unidentified)

Feather Duster Worm,
Megalomma sp.
 
Sandcastle Worm
Serpulidae   Syllidae Terebellidae

Calcareous Tube Worm,
Hydroides sp.

Christmas Tree Worm, Spirobranchius sp.
 
Syllid Worm, Typosyllis nipponica

Spaghetti Worm (Terebellidae)
Ectoprocts (Bryozoans)

Membranipora

Bryozoan (unidentified)

Bryozoan (unidentified)

Rosy Bryozoan

Bryozoan (unidentified)
Polyplacophora Molluscs: Octopuses  
Ischnochitonidae Lepidochitonidae Mopaliidae    

Conspicuous Chiton,
Stenoplax conspicua
Southern Spiny Chiton,
Nuttallina fluxa
Mossy Chiton,
Mopalia muscosa

Two-spotted Octopus, Octopus bimaculatus
 
Molluscs: Gastropods

Rough Limpet,
Collisella scabra

Southern Finger Limpet,
Lottia austrodigitalis

Owl Limpet,
Lottia gigantea

File Limpet,
Lottia limatula

Giant Keyhole Limpet,
Megathura crenulata

Threaded Abalone,
Haliotis kamtschatkana assimilis

Wavy Top Turban

Speckled Turban

Black Turban

Smooth Brown Turban (Norris' Top Shell), Norrisia norrisi

California Horn Snail,
Cerithidea californica

Gem Murex,
Maxwellia gemma

Emarginate Dog Winkle, Nucella emarginata

Festive Murex,
Pteropurpura festiva

Checkered Periwinkle,
Littorina scutulata

Gray Littorine,
Littorina planaxis

Slipper Limpet, Crepidula sp.

Chestnut Cowrie,
Cypraea spadicea

California Cone Snail,
Conus californicus

Scaly Worm Shell,
Serpulorbis squamigerus

Sea Hare
California Black Sea Hare,
Aplysia vaccaria

Nassa Mud Snail, Nassarius sp.

Sidegill Slug,
Tylodina fungina

Hopkin's Rose, Okenia rosacea

Spanish Shawl,
Flabellina iodinea

Lemon Nudibranch,
Anisodris nobilis

Sorcerer's Nudibranch,
Polycera atra

Speckled Triopha,
Triopha maculata
 
Molluscs - bivalves
Chamidae Mytilidae  

Pacific Jewelbox,
Pseudochama exogyra

Ribbed Mussel,
Geukensia demissa

Asian date mussel,
Musculista senhousia

California Mussel,
Mytilus californianus
 
Ostreidae      

Pacific Oyster,
Crassostrea gigas

Olympia Oyster,
Ostrea conchaphila
     
Pectinidae Petricolidae Pholadidae Psammobiidae

Giant Rock Scallop,
Crassadoma gigantea

Speckled Scallop,
Argopecten ventricosa

Hearty Petricolid,
Petricola carditoides (?)

Piddock

California Jack-knife Clam,
Tagelus californianus
Semelidae Veneridae

Asian Semele,
Theora lubrica

Clipped semele,
Semele decisa

Pacific Littleneck,
Leukoma staminea

Japanese Littleneck,
Venerupis philippinarum

California Butter Clam,
Saxidomus nuttalli
         
Echinoderms

Purple Sea Urchin, Strongylocentrotus purpuratus

Giant Red Sea Urchin,
Strongylocentrotus franciscanus

White Sea Urchin,
Lytechinus anamesus

Sand Dollar,
Dendraster excentricus

Warty Sea Cucumber,
Parastichopus parvimensis

B
rittle Star,
Amphiodia occidentalis

Banded Brittle Star,
Ophionereis annulata

Spiny Brittle Star,
Ophiothrix spiculata

Ochre Star,
Pisaster ochraceus

Bat Star, Asterina miniata

Leather Star,
Dermasterias imbricata

Pink Sea Star, Pisaster brevispinus

Comb Sand Star,
Astropecten armatus
   
Amphipods      

Amphithoe plumulosa

Skeleton Shrimp, Caprella mendax

Elasmopus bampo

Freshwater shrimp, Gammarus sp.

Beach amphipod, Melita sp.

California Beach Hopper, Orchestoidea californiana

Big-eyed Beach Hopper, Orchestoidea corniculata

Hyalid amphipod

Unidentified Amphipod

Unidentified Amphipod
Isopods

Water slater,
Asellus aquaticus

Harford's Isopod,
Cirolana harfordi

Bigtail Isopod,
Exosphaeroma amplicauda

Exosphaeroma inornata

Sea Slater (Rock Louse),
Ligia occidentalis

Paranthura elegans

Parasitic Isopod,
Nerocila acuminata

Unidentified Isopod

Unidentified Isopod
 
Cirripedia (Barnacles)

Goose Barnacle

Acorn Barnacle


Red-striped Acorn Barnacle


Balanus (rostratus?)

Small Acorn Barnacle

Red-thatched Barnacle
       
Decapods (Shrimp, crayfish, lobsters, crabs)

Ghost Shrimp,
Callianassa californiensis

California Spiny Lobster,
Panulirus interruptus

Brown Shrimp,
Penaeus californicus

Crayfish,
Procambarus clarkii

Fiddler Crab, Uca crenulata

Pacific Sand Crab,
Emerita analoga

Yellow Shore Crab,
Hemigrapsus oregonensis

Striped shore crab,
Pachygrapsus crassipes

Swimming Crab,
Portunus xantusii

Kelp Crab,
Pugettia sp.

Hermit Crab,
Pagurus samuelis

Hermit Crab,
Pagurus hirsutiusculus

Hermit Crab
   
Tunicates
Class: Appendicularia (Larvaceans), Family Oikopleuridae   Class Ascidiacea (Sea Squirts), family Cionidae Class Ascidiacea (Sea Squirts), family Styelidae

Oikopleura sp.

Pacific Transparent Sea Squirt,
Ciona savignyi

Social (not colonial) Ascidian,
Metandrocarpa dura

Club Tunicate,
Styela clava

Pleated Sea Squirt,
Styela plicata
Class Ascidiacea (Sea Squirts), family Botryllidae: Colonial tunicates  

Colonial Tunicate, Botrylloides diegensis (red/white form)


Colonial Tunicate, Botrylloides diegensis (orange form)

Golden Star Tunicate,
Botryllus schlosseri
   
Class Thaliacea (Salps)  

Pyrosome,
Pyrosoma sp.

Salp,
Cyclosalpa affinis

Salp,
Salpa fusiformis


Salp,
Thalia rhomboides
 
Fish  

Wooly Sculpin

Opaleye

California Grunion
   
Sea Spiders  

Ammothea hilgendorfi

Ammothella biunguiculata

Pycnogonum stearnsi

Unidentified
 
Insects

Intertidal Midge, Paraclunio alaskensis

Long-legged fly

Kelp fly (Fucellia rufitibia)

Melyrid Beetle,
Endeodes insularis

Intertidal Rove Beetle, Cafius sp.
First Annual Report of the Laguna Beach Marine Laboratory, Pomona College 1912