Crustacea of Southern California
and nearby places (Click on images or names to open)


Yellow background, exotic species

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

Jassa slatteryi

Hyalid amphipod

Unidentified Amphipod

Unidentified Amphipod
       
Branchiopoda        

Vernal Pool Fairy Shrimp, Branchinecta lindahli
       
Cirripedia (Barnacles)

Humpback Whale Barnacle, Coronula diadema

Pelagic Goose Barnacle,
Lepas anatifera

California Barnacle,
Megabalanus californicus

Goose Barnacle,
Pollicipes polymerus

Red-thatched Barnacle,
Tetraclita rubescens

Ivory Barnacle,
Amphibalanus eburneus

Acorn Barnacle,
Balanus glandula

Giant Acorn Barnacle,
Balanus nubilus

Pacific Barnacle,
Balanus pacificus

Small Acorn Barnacle,
Chthalamus fissus
Cladocera The Cladocerans

Chydorus sphaericus


Water flea,
Daphnia sp.


Marine Cladoceran,
Evadne sp.

Marine Cladoceran,
Penilia avirostris

Marine Cladoceran, Pleopis polyphemoides

Marine Cladoceran,
Pseudevadne tergestina
       
Copepods

Calanoid Copepod,
Acartia sp.

Calanus pacificus

Sea Louse,
Caligus sp.

Caligoid (parasitic) copepod
(Sea Louse)


Mecynocera clausi

Paracalanus parvus

Calanoid copepod
     

Cyclopoid Copepod

Cyclopoid Copepod

Harpacticoid Copepod

Nauplius II larva
 
Cumacea Euphausiacea (Krill)

Cumacean

Euphausia pacifica

(larva) Nematoscelis difficilis

Nyctiphanes simplex

Thysanoessa spinifera
Marine Isopods Guide to the Coastal Marine Isopods of California

Water slater,
Asellus aquaticus

Marine isopod, Cilicaea sp.

Harford's Isopod,
Cirolana harfordi

Elthusa californica

Excirolana chiltoni

Bigtail Isopod,
Exosphaeroma amplicauda

Exosphaeroma inornata

Sea Slater (Rock Louse),
Ligia occidentalis

Parasitic Isopod,
Nerocila acuminata

Paranthura elegans

Marine Isopod

Marine Isopod
 
 
Terrestrial Isopods   Mysidacea

Pill bug,
Armadillidium vulgare

Porcellionides floria

Terrestrial Isopod
 
Opossum Shrimp
Ostracods   Stomatopods
(Mantis Shrimps)

Tanaids


Ostracod
 
Mantis shrimp,
Hemisquilla ensigera californiensis

Synaptotanais notabilis

Zeuxo sp.
Decapods (Shrimp, crayfish, lobsters, crabs)
Alpheidae Callianassidae Cambaridae Palinuridae

Snapping Shrimp,
Alpheus sp.

Ghost Shrimp,
Neotrypaea affinis

Ghost Shrimp,
Neotrypaea californiensis

Crayfish,
Procambarus clarkii

California Spiny Lobster,
Panulirus interruptus
Epialtidae Grapsidae Hippidae Munididae

Decorator Crab,
Loxorhynchus crispatus

Kelp Crab,
Pugettia sp.

Striped shore crab,
Pachygrapsus crassipes

Pacific Sand Crab,
Emerita analoga

Pelagic Red Crab,
Pleuroncodes planipes
Ocypodidae Pandalidae Penaeidae    

Fiddler Crab,
Uca crenulata

Spot Prawn,
Pandalus platyceros

Brown Shrimp,
Penaeus californicus
   
Paguridae Pinnotheridae  

Hermit Crab,
Pagurus samuelis

Hermit Crab,
Pagurus hirsutiusculus

Hermit Crab


Zoea larva of Pea crab,
Pinnixa franciscana

 
Porcellanidae: Porcelain Crabs   Portunidae

Cabrillo's Porcelain Crab, Petrolisthes cabrilloi

Zoea Larva

Zoea Larva
 
Swimming Crab,
Portunus xantusii
Leucosiidae Lithodidae
Majidae Varunidae

Purple Globe Crab,
Randallia ornata

Spiny King Crab,
Paralithodes californiensis

Rathbun's King Crab,
Paralithodes rathbuni

Southern Kelp Crab (Globose Kelp Crab), Taliepus nuttallii

Yellow Shore Crab,
Hemigrapsus oregonensis

A collection of unidentied megalops larvae