Nucula proxima

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Nucula proxima
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Nuculida
Family: Nuculidae
Genus: Nucula
Species:
N. proxima
Binomial name
Nucula proxima
Say, 1822

Nucula proxima, commonly known as the Atlantic nut clam, is a marine bivalve mollusc in the family Nuculidae. It can be found along the Atlantic coast of North America, ranging from Nova Scotia to Texas, including Bermuda.[1][2]

Description

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Nucula proxima has a obliquely oval, off-white to gray, shell. The exterior is glossy smooth with brownish conmarginal growth lines. The interior is a nacreous white color with fine radial striations. The length ranges from 3 mm to 10 mm. Size, shape, and color vary based on where the species is environmentally, this has led to multiple named forms.[3]

Ecology

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Nucula proxima typically lives on muddy-sand bottoms. Unlike most bivalves which are filter-feeders, N. proxima is a deposit-feeder. Thus it consumes decomposing organic matter film and bacteria that accumulates on the sea floor. They do this by using their labial palp, a proboscis likes structure that has a ciliated groove, to feed.[4][5]

References

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  1. ^ Abbott, R.T. & Morris, P.A. A Field Guide to Shells: Atlantic and Gulf Coasts and the West Indies. New York: Houghton Mifflin, 1995. 3.
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