Mya arenaria

Norsk(e) navn: vanlig sandskjell. Utbredelse: se teksten . On the interior of the left valve at the hinge there is a large, shelf-like, scooped-out projection, while the right valve has a pit or depression in the corresponding position on the inside of the valve. Pancucci-Papadopoulou, J. Annotated list of marine alien species in the Mediterranean with records of the worst invasive species.

Platyodon cancellatus, Cryptomya californica, Mya truncata, Schizothaerus nuttalli.

Maximum length is said to be 17cm, but in most cases shell length does not exceed 10cm. All species of Mya have a large calcareous plate (chondrophore) on the hinge of the . Some authors claim it also occurs on the Pacific west coast. The species originated in the Pacific during the Miocene and was already present on both Atlantic coasts in . SHORT DESCRIPTION Shell large, strong but chalky, inequivalve with lv generally smaller.

Rough sculpture marked by concentic lines (growth lines). Distinctive hinge with an erect spoon-like tooth (chondrophore) located under . Common name, Soft-shell clam. Other names, › softshell.

Lineage, › cellular organisms › Eukaryota › Opisthokonta › Metazoa › Eumetazoa › Bilateria › Protostomia › Lophotrochozoa › Mollusca › Bivalvia › Heteroconchia › Euheterodonta › Myoida › Myoidea › Myidae › Mya. Mya arenaria is a large long-lived bivalve. Attempts to introduce infectious or foreign material into oysters and other bivalve mollusks usually involve force or trauma because of immediate, prolonged adduction of the tightly closing valves.

Description: As with other members of Family Myidae, this species has a shelflike or spoonlike chondrophore projecting from the hinge plate of the left valve, has two adductor muscles of similar size, and no radial ribs. The chondrophore (on the left valve) is . Equivalve: Inequivalve, RV slightly more convex than LV. Equilateral: Subequilateral beaks at or just in front of the midline. Vanlig sandskjell lever nedgravd i sand og muddersand blandet med grus. De liker seg best på grunt vann ned til meters dyp.

Forvekslingsarter: Butt sandskjell ( Mya truncata). Systematikk: Rike, Dyreriket ( Animalia). Rekke, Bløtdyr (Mollusca). Klasse, Muslinger (Bivalvia). Sediment type can dictate both . The soft shell clam is a bivalve with thin, elongated shells.

It lives buried in soft sediments in the middle Chesapeake Bay. Histopatbological studies. Ten million 8-mm clam juveniles are reared annually at the Beals Island Regional Shellfish Hatchery and are transplanted onto publicly-owned mudflats during the.