Cancer irroratus   Say, 1817

Atlantic rock crab

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Cancer irroratus  AquaMaps  Data sources: GBIF OBIS
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Image of Cancer irroratus (Atlantic rock crab)
Cancer irroratus
Picture by Harvey-Clark, Chris

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Cancridae

Environment: milieu / climate zone / depth range / distribution range Ecology

Benthic; depth range 0 - 575 m (Ref. 367).  Temperate, preferred 20°C (Ref. 107945); 53°N - 25°N, 81°W - 43°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 8.9 cm CW (female); max. published weight: 0.00 g

Short description Morphology

Carapace approximately 2/3 long as wide, convex, granulated; front with 3 teeth, middle one exceeding others and depressed (flattened dorsoventrally); anterolateral margins (excluding inner orbital angles) divided into 9 lobes or teeth with edges granulate; notches between teeth continued on carapace as short, closed fissures giving teeth a pentagonal character. Pincers moderate-sized, shorter than second legs, ridges granulated carpus with sharp inner dorsal spine. Color: yellowish, closely dotted with dark purplish brown, becoming reddish brown after death.

Biology     Glossary (e.g. epibenthic)

Minimum depth from Ref. 97531. Occurs at depths ranging from the low-water mark to 575 m. Basically a cold water species. Small to medium-sized crabs move into shallower depths especially in winter, whereas larger ones occur in deeper waters (Ref. 367). Found on molluscan and other shells (Ref. 97531). Feeds mainly on mollusks, echinoderms, and other invertebrates (Ref. 367).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.

Main reference References | Coordinator | Collaborators

Tavares, M. 2003. (Ref. 367)

IUCN Red List Status (Ref. 126983)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource | Sea Around Us


More information

Common names
Egg development

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 0.5 - 19, mean 5.9 (based on 187 cells).
Price category (Ref. 80766): Very high.