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Stramonita haemastoma

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Stramonita haemastoma, common name the red-mouthed rock shell or the Florida dog winkle, is a species of predatory sea snail, a marine gastropod mollusc in the family Muricidae, the rock snails.

Subspecies

Stramonita haemastoma contains the following subspecies:
  • Stramonita haemastoma canaliculata (Gray, 1839)
  • Stramonita haemastoma floridana (Conrad, 1837)
  • Stramonita haemastoma haemastoma (Linnaeus, 1767)

Distribution

The red-mouthed rock shell occurs widely in tropical and warm water areas of the Western Atlantic Ocean. Regions where it can be found include the Caribbean Sea, North Carolina and Florida, Bermuda and the entire Brazilian coast, including the islands of Abrolhos and Fernando de Noronha. It is also found in the Eastern Atlantic: tropical Western Africa and Southwestern Africa, including Cape Verde and Angola, and in European waters, including Macaronesian Islands, the Mediterranean Sea and the southwest coast of Apulia. Canary Islands. Its once abundant population in the Eastern Mediterranean collapsed early in the 21st century and had entirely disappeared by 2016.

Description

The adult shell size for this species varies between 22 mm and 120 mm.

Feeding habits

Stramonita haemastoma is a widespread gastropod that consumes bivalves, barnacles and limpets. In the Mediterranean Sea the whelk is an important predator of the bivalve Mytilaster minimus, but where the invasive Lessepsian migrant bivalve Brachidontes pharaonis is found, the whelk prefers to prey on that species over the native bivalves and barnacles.Giacoletti, A., Rinaldi, A., Mercurio, M., Mirto, S. and Sarà, G. 2016. "Local consumers are the first line to control biological invasions: a case of study with the whelk Stramonita haemastoma (Gastropoda: Muricidae)". Hydrobiologia. 772:117–129. Through feeding behaviors such as attacking the margin or lip of shells where defenses are weakest, Stramonita haemastoma insert its proboscid between the valves injecting proteolytic enzymes and a toxin that causes bivalves to gape.Watanabe, J.T. & Young, C.M. 2006. Feeding habits and phenotypic changes in proboscis length in the southern oyster drill, Stramonita haemastoma (Gastropoda: Muricidae), on Florida sabellariid worm reefs. Marine biology, 148:1021-1029.McGraw, K.A., Gunter, G. 1972. Observations on killing of the Virginia oyster by the gulf oyster borer, Thais haemastoma, with evidence for a paralytic secretion. Proc Nat Shellfish Assoc 62:95–97.

Human use


The shell was one of two principal sources of Tyrian purple, a highly prized dye used in classical times for the clothing of royalty, as recorded by Aristotle and Pliny the Elder.

Further reading

  • Bernard, P.A. (Ed.) (1984). Coquillages du Gabon Shells of Gabon. Pierre A. Bernard: Libreville, Gabon. 140, 75 plates
  • Gofas, S.; Afonso, J.P.; Brandào, M. (Ed.). (S.a.). Conchas e Moluscos de Angola = Coquillages et Mollusques d'Angola. Shells and molluscs of Angola. Universidade Agostinho / Elf Aquitaine Angola: Angola. 140 pp
  • Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
  • Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda
  • Rosenberg, G., F. Moretzsohn, and E. F. García. 2009. Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Biodiversity. Texas A&M Press, College Station, Texas.
  • Ramírez R., Tuya F. & Haroun R. J. (2009) "Spatial patterns in the population structure of the whelk Stramonita haemastoma (Linnaeus, 1766) (Gastropoda: Muricidae) in the Canarian Archipelago (eastern Atlantic)". Scientia Marina 73(3)

External links


  • Category:Muricidae
    Category:Molluscs of the Atlantic Ocean
    Category:Gastropods of Africa
    Category:Molluscs of Europe
    Category:Molluscs of South America
    Category:Molluscs of the Mediterranean Sea
    Category:Molluscs of the Canary Islands
    Category:Molluscs of Angola
    Category:Gastropods of Cape Verde
    Category:Molluscs described in 1767
    Category:Taxa named by Carl Linnaeus
     
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