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Geukensia demissa   (Dillwyn, 1817)

ribbed mussel
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Geukensia demissa
Picture by Harvey-Clark, Chris

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

Bivalvia | Mytiloida | Mytilidae

Environment / Climate / Range Ecology

Benthic; depth range 0 - 0 m (Ref. 83435).  Tropical; 49°N - 30°N, 80°W - 65°W (Ref. 3446)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Atlantic and Eastern Pacific.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 12.0 cm TL male/unsexed; (Ref. 7726)

Biology     Glossary (e.g. epibenthic)

Western Central Atlantic; Northwest Atlantic: Canada to northeastern Florida; Gulf of Mexico; introduced to California. 8 cm, total length. It lives attached to hard substrates intertidally or at shallow subtidal depths. Diagnostic features: Shell mussel-shaped, thin but strong. Shell margins crenulated. Sculpture of strong, numerous, bifurcating radial ribs, weaker on anteroventral area. Hinge teeth absent. Colour: externally variable, usually yellowish brown, greenish brown, or dark brown, internally bluish white with posterior end (rounded area) purplish (Ref. 271). It lives attached to hard substrates intertidally or at shallow subtidal depths (Ref. 271). Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).

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

Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.

Main reference References | Coordinator | Collaborators

Harvey-Clark, C. 1997. (Ref. 7726)

IUCN Red List Status (Ref. 115185)

CITES status (Ref. 108899)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FisheriesWiki |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance

Internet sources

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

Estimates of some properties based on models

Vulnerability (Ref. 71543)
Low to moderate vulnerability (32 of 100)
Price category (Ref. 80766)
Medium