Geukensia demissa

Geukensia demissa
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Mytilida
Family: Mytilidae
Genus: Geukensia
Species:
G. demissa
Binomial name
Geukensia demissa
(Dillwyn, 1817)
Synonyms

Modiolus demissus (Dillwyn)
Modiola plicatula (Lamarck)
Volsella demissa (Dillwyn)

Geukensia demissa is a species of mussel, a marine bivalve mollusk in the family Mytilidae, the true mussels. This species is native to the Atlantic coast of North America. The common names for this species include ribbed mussel, Atlantic ribbed marsh mussel and ribbed horsemussel.[1] However, the common name ribbed mussel is also used for the Southern Hemisphere mussel Aulacomya atra. The appearance of the shell is grooved and oval in shape. The interior of this mussel is tinted purple.

The ribbed shells of this species usually attain a length of 10 cm length, and can be as large as 13 cm.[1] Age can be determined by counting dark growth rings on the shell and mussels typically live 10 – 15 years, but more advanced ages are not uncommon.[2]

  1. ^ a b Geukensia demissa (mollusc) Global Invasive Species Database.
  2. ^ Brousseau, Diane J. (1984-01-01). "Age and Growth Rate Determinations for the Atlantic Ribbed Mussel, Geukensia demissa Dillwyn (Bivalvia: Mytilidae)". Estuaries. 7 (3): 233–241. doi:10.2307/1352143. JSTOR 1352143. S2CID 84772892.