Lithode Crab

Acantholithodes hispidus

Lithode Crab

Acantholithodes hispidus
Other Common Names
Spiny lithode crab, spiny lithodid crab, red fur crab, fuzzy crab, hairy spined crab
Other Common Names
Spiny lithode crab, spiny lithodid crab, red fur crab, fuzzy crab, hairy spined crab

At the Aquarium

Connected Coasts

Appearance

The lithode crab is named for the stiff dark red-brown, orange, and white hairs covering its body and legs. It has a heart or pear-shaped carapace covered in hairs that is flat on top widest past the midpoint.

Its eyes have orange corneas with a black dot atop small light brown eye-stalks with dark brown stripes. The claws are orange and the right claw is usually larger than the left one, and it has molar-like teeth on its claws.

Habitat

Intertidal to depths of 165m on sandy, muddy, or rocky substrate; often found on vertical rock walls

Diet

Shrimp

Life History

This crab starts life in the plankton, passing through 4 zoeal stages and 1 megalops stage before settling to the bottom.

Males tend to be slightly larger. The carapace on males can reach 6.5cm across while the carapace of females can reach 5cm.

IUCN Status

Not Evaluated

Ecosystem & Cultural Importance

Is often pulled up from deepwater prawn traps
Bering Sea to central California
Though usually subtidal, it is possible to see them in tidepools
This is a type of king crab, with 8 legs visible.

Citations & Other Resources

  • E-Fauna BC site: https://linnet.geog.ubc.ca/efauna/Atlas/Atlas.aspx?sciname=Acantholithodes%20hispidus
  • Invertebrates of the Salish Sea website: https://inverts.wallawalla.edu/Arthropoda/Crustacea/Malacostraca/Eumalacostraca/Eucarida/Decapoda/Anomura/Family_Lithodidae/Acantholithodes_hispidus.html
  • Hong, Sung Yun, et al. “Larval development of Acantholithodes hispidus (Stimpson)(Decapoda: Anomura: Lithodidae) reared in the laboratory.” Invertebrate reproduction & development 47.2 (2005): 101-110.