Paralithodes rathbuni

(J. E. Benedict, 1895)

spiny king crab, California king crab

Paralithodes rathbuni is a deep-sea king crab in the Lithodidae, commonly known as the spiny king crab or California king crab. It inhabits the continental shelf and slope off the coast of California and Baja California at depths of 86–380 meters. The is closely related to P. californiensis, with which it shares the "California king crab," and some authorities have suggested the two may be .

Paralithodes rathbuni by (c) oliver.dodd, some rights reserved (CC BY). Used under a CC-BY license.Spiny king crab by wikipedia. Used under a CC BY 2.5 license.

Pronunciation

How to pronounce Paralithodes rathbuni: //ˌpɛrəˌlɪˈθoʊdiːz ˈræθbuːni//

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

Distinguished from the congeneric P. camtschaticus (red king crab) by its geographic restriction to the eastern Pacific and deeper preferences. Differentiation from P. californiensis is problematic; the two may be and are currently separated based on subtle morphological differences. The specific epithet "rathbuni" honors the carcinologist Mary J. Rathbun.

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Habitat

Sandy, muddy, or rocky benthic substrates on the continental shelf and upper slope at depths of 86–380 meters.

Distribution

East Pacific Ocean, specifically off the coast of California and Baja California, Mexico.

Human Relevance

Minor commercial interest as a king crab , though less economically significant than P. camtschaticus. Potential for confusion with P. californiensis in fisheries contexts due to shared .

Similar Taxa

  • Paralithodes californiensisShares the "California king crab" and may be ; morphologically similar and sympatric in the same region
  • Paralithodes camtschaticusLarger, commercially important red king crab found in the North Pacific; distinguished by distribution and shallower depth preferences

Misconceptions

Wikipedia incorrectly describes this as a "hermit crab"; it is a true king crab ( Lithodidae), which are nested within the infraorder Anomura but are not hermit crabs in the ecological sense.

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Sources and further reading