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Metacarcinus anthonyi

species of crustacean

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionMay 14, 2025
Entity authorityQ6822385 ↗
Source-derived summary

Metacarcinus anthonyi, the yellow rock crab or yellow crab, is a species of edible crab native to the Pacific coast of North America.

Distribution

Metacarcinus anthonyi occurs from Magdalena Bay, Baja California north to Humboldt Bay in Northern California, although it is uncommon further north than San Pedro. It lives in rocky areas at depths of up to 132 m (433 ft). Only the juveniles live in the intertidal zone.

Some fossils of M. anthonyi are also known from central and southern California, dating from the Pliocene and Pleistocene.

Description

Male yellow rock crabs can reach 165 mm carapace width, while females reach 148 mm. The carapace is oval, fairly broad, and widest at the 9th of 10 forward-curving anterolateral teeth. Like other California Cancridae crabs, M. anthonyi has black-tipped claws. M. anthonyi can be distinguished from Romaleon antennarium by its lack of red spotting on its underside. M. anthonyi also tends not to decorate itself and tends not to have hairy legs.

Editorial summary

This brief starts where responsible research should: with the source description of “Metacarcinus anthonyi” as species of crustacean. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current 163-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Metacarcinus, anthonyi and species can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as species of crustacean. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated May 14, 2025. The linked authority identifier is Q6822385. None of the 0 selected statements returned an explicit reference.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from “Metacarcinus anthonyi” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.