Arca imbricata

Arca imbricata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Bivalvia
Order:	Arcida
Family:	Arcidae
Genus:	Arca
Species:	A. imbricata
Binomial name
	Arca imbricata; Bruguière, 1789

Arca imbricata, or the Mossy ark clam, is a clam in the family Arcidae. It can be found along the Atlantic coast of North America, ranging from North Carolina to the West Indies, Brazil, and Bermuda.^[2]

Description

Arca imbricata grows to about 2 ins (5 cm) in length. The valves have a roughly rectangular shape with a rounded anterior end and a slightly pointed posterior end. They are usually purplish-white in colour, but live specimens are covered in a thin brown protective periostracum. There are some distinct ribs on the posterior end and the margin is smooth. The hinge is long and straight with a number of fine teeth.^[3]

References

^ Arca imbricata Bruguière, 1789 World Register of Marine Species. Retrieved 2011-11-29.
^ Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 7.
^ Mossy Ark: Born to Shag Retrieved 2011-11-29.

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[1] Arca imbricata Bruguière, 1789 World Register of Marine Species. Retrieved 2011-11-29.

[2] Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 7.

[3] Mossy Ark: Born to Shag Retrieved 2011-11-29.

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