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Anatomy of a bivalve clam. (ss) respiratory tubes; (aa) muscles by which the shell is closed (b) gills; (h) heart; (o) mouth; (f) foot; (m) cut edge of mantle.

Clam

Anatomy of a bivalve clam. (ss) respiratory tubes; (aa) muscles by which the shell is closed (b) gills;…

a - foot; b,c - siphons

Clam

a - foot; b,c - siphons

A common cockle shell.

Cockle

A common cockle shell.

A sea shell.

Columbella

A sea shell.

A genus of mollusks which are extensively used for food.

Concolepas

A genus of mollusks which are extensively used for food.

"The <em>U. elongata</em> is found in Great Britain, and formerly produced numerous pearly; these were famous even in the time of Julius Caeser. In Ireland and Scotland this species has produced pearly, in modern times, valued at between twenty to four hundred dollars." &mdash; Goodrich, 1859

Unio elongata

"The U. elongata is found in Great Britain, and formerly produced numerous pearly; these were…

A cup and saucer limpet.

Limpet

A cup and saucer limpet.

A limpet having the shell pileate in form, with rounded apeture, posterior spirally recurved apex, and horseshoe-shpaed muscular impressions.

Foolscap Limpet

A limpet having the shell pileate in form, with rounded apeture, posterior spirally recurved apex, and…

"[From left to right:] Shell from Malabar, Large Mussel, Thorned Murex, Large Helmet Shell." &mdash; Goodrich, 1859

Murcidae

"[From left to right:] Shell from Malabar, Large Mussel, Thorned Murex, Large Helmet Shell." —…

pond mussel dissected to show alimentary canal, al c..

Mussel

pond mussel dissected to show alimentary canal, al c..

"Mussel attached by a byssus to a rock." &mdash; Goodrich, 1859

Mussel

"Mussel attached by a byssus to a rock." — Goodrich, 1859

<em>Modiola plicatula</em>, a characteristic mussel of the tidal flats and salt-meadow streams of the Atlantic coast.

Mussel

Modiola plicatula, a characteristic mussel of the tidal flats and salt-meadow streams of the…

"Though inferior to the oyster, immense quantities of the Common Mussel, <em>Mytilus edulis</em>, are eaten in Europe." &mdash; Goodrich, 1859

Common mussel

"Though inferior to the oyster, immense quantities of the Common Mussel, Mytilus edulis, are…

"The <em>unio pictorium</em> is common in Europe, and derived its name from the fact that its shell was formerly used by painters to hold their colors." &mdash; Goodrich, 1859

Unio pictorium

"The unio pictorium is common in Europe, and derived its name from the fact that its shell…

"River-Mussel (Anodonta fragilis), North Carolina."-Whitney, 1902

River Mussel

"River-Mussel (Anodonta fragilis), North Carolina."-Whitney, 1902

The scallop (Hinnites pusio) is a marine bivalve mollusk from the Pectinidae family.

Scallop

The scallop (Hinnites pusio) is a marine bivalve mollusk from the Pectinidae family.

A short and wide sea shell.

Shell

A short and wide sea shell.

A spiral shaped sea shell.

Shell

A spiral shaped sea shell.

A sea shell.

Shell

A sea shell.

A spiral shaped shell.

Shell

A spiral shaped shell.

The cone shells are numerous and beautiful found in southern and tropical seas.

Cone Shell

The cone shells are numerous and beautiful found in southern and tropical seas.

A mussel shell of the stone&mdash;boring genus Lithodomus.

Date Shell

A mussel shell of the stone—boring genus Lithodomus.

Numerous mussels shells packed tightly together.

Mussel Shells

Numerous mussels shells packed tightly together.

"The <em>U. spinosa</em> is found in the Mississippi River." &mdash; Goodrich, 1859

Unio spinosa

"The U. spinosa is found in the Mississippi River." — Goodrich, 1859