Surf Wiki
Save to docs
general/cancroidea

From Surf Wiki (app.surf) — the open knowledge base

Romaleon antennarium

Species of crab

Romaleon antennarium
Summary

Species of crab

Romaleon antennarium (formerly Cancer antennarius), commonly known as the Pacific, brown or California rock crab, is a crab of the genus Romaleon found on the western coast of North America.

Description

Romaleon antennarium has a fan-shaped carapace with eleven teeth to either side of the eyestalks, the widest point falling at the eighth or ninth tooth. The chelipeds are quite stout with the black tips bent downward. The antennae are long and prominent, accounting for the specific name. The dorsal surfaces of adults are uniformly red, but the ventral surface of the carapace is spotted.

This species is easily confused with the red rock crab, Cancer productus. They can be distinguished by the less prominent antennae, less robust claws, and lack of ventral spots on the latter.

Fishery

Romaleon antennarium is harvested by sport and commercial fishermen in California, mostly from Morro Bay south. The California rock crab fishery is made up of three species - the yellow rock crab (C. anthonyi), the brown rock crab (R. antennarium), and the red rock crab (C. productus). Rock crab landings for 1999 were 790,000 pounds and have averaged 1.2 million pounds per year from 1991-1999.

References

References

  1. P. K. L. Ng, D. Guinot & P. J. F. Davie. (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world". [[Raffles Bulletin of Zoology]].
  2. (December 2001). "Rock Crabs".
Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

cancroidea crustaceans-described-in-1856
Want to explore this topic further?

Ask Mako anything about Romaleon antennarium — get instant answers, deeper analysis, and related topics.

Research with Mako

Free with your Surf account

Content sourced from Wikipedia, available under CC BY-SA 4.0.

This content may have been generated or modified by AI. CloudSurf Software LLC is not responsible for the accuracy, completeness, or reliability of AI-generated content. Always verify important information from primary sources.

Report