Species

Hemigrapsus nudus (Purple shore crab)

Hemigrapsus nudus. Photo: (c) Dan Hershman, some rights reserved (CC BY)

iNaturalist • Wikipedia

The purple shore crab, Hemigrapsus nudus, is a common crab of the family Varunidae. It can be found sheltering under rocks in inter-tidal areas along the west coast of North America, from Alaska to Baja California in Mexico. This crab primarily eats sea lettuce and other green algae, and occasionally scavenges dead animals.

Humboldt Life
- Kingdom: Animalia (Animals)
  - Phylum: Arthropoda (Arthropods)
    - Subphylum: Crustacea (Crustaceans)
      - Superclass: Multicrustacea (Typical crustaceans)
        Class: Malacostraca (Malacostracans)
        Subclass: Eumalacostraca (Decapods, isopods, and allies)
        Superorder: Eucarida (Decapods and krill)
        Order: Decapoda (Decapods)
        Suborder: Pleocyemata (Crabs, lobsters, shrimps, and allies)
        Infraorder: Brachyura (True crabs)
        Zoosection: Eubrachyura (Eubrachyuran crabs)
        Zoosubsection: Thoracotremata (Thoracotrematan crabs)
        Superfamily: Grapsoidea (Land, shore, and marsh crabs)
        Family: Varunidae (Varunid crabs)
        Subfamily: Varuninae
        Genus: Hemigrapsus
        Species: Hemigrapsus nudus (Purple shore crab)

Sightings

Where in Humboldt

Discussion

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