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The Clams and Other Bivalves ClipArt gallery features 148 illustrations of bivalves, including species of clams, mussels, scallops, and oysters.

"Only six actually living species of the genus have been found; these inhabit the Indian Ocean, the Australian seas, and the Pacific Ocean. The interior of the pearl oyster-shell affords the most exquisite pearls."

Malleus Alba (Lamarck)

"Only six actually living species of the genus have been found; these inhabit the Indian Ocean, the…

Left valve of a mollusk of the Chamid&aelig' genus.

Mollusk

Left valve of a mollusk of the Chamidæ' genus.

Right valve of a mollusk of the Chamid&aelig' genus.

Mollusk

Right valve of a mollusk of the Chamidæ' genus.

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

Mussel

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

Mussel; with threads by which it is attached.

Mussel

Mussel; with threads by which it is attached.

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

Mussel

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

"Longitudinal Section through a Fresh-water Mussel. a, edge of mantle; b, foot, with position of ganglion indicated; c, gills; d, mouth; e, tentacles or palps; f, posterior adductor muscle; g, anterior adductor; h, head-ganglion; i, ventricle of heart; j, auricle of heart; k, rectum; l, kidney; m, exhalent aperture; n, inhalent aperture." -Vaughan, 1906

Mussel Anatomy

"Longitudinal Section through a Fresh-water Mussel. a, edge of mantle; b, foot, with position of ganglion…

"Mytilus edulis, attached by byssus (By) to a piece of wood. F, foot; S, exhalant siphon." -Parker, 1900

Blue Mussel

"Mytilus edulis, attached by byssus (By) to a piece of wood. F, foot; S, exhalant siphon." -Parker,…

"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 fresh-water mussel...the bivalve in motion in the mud with protruded foot (F.); nonte inhaland and exhalant apertures...u., the umbo." -Thomson, 1916

Freshwater Mussel

"The fresh-water mussel...the bivalve in motion in the mud with protruded foot (F.); nonte inhaland…

"The fresh-water mussel...the inside of the shell (left valve)...u., The umbo; L., the ligament; c.t., lateral teeth; a.a., anterior adductor mark; a.r., mark of protractor of the foot; p.l., pallial line; p.a., posterior adductor mark; p.r., mark of posterior retractor of the foot; A., anterior (the blunter end); P., posterior." -Thomson, 1916

Freshwater Mussel

"The fresh-water mussel...the inside of the shell (left valve)...u., The umbo; L., the ligament; c.t.,…

"The fresh-water mussel...the outside of the shell (right valve)...u., The umbo; L., the ligament; l.g., a line of growth; A., anterior (the blunter end); P., posterior; V., ventral." -Thomson, 1916

Freshwater Mussel

"The fresh-water mussel...the outside of the shell (right valve)...u., The umbo; L., the ligament; l.g.,…

"Mya arenaria, in living position." -Taylor, 1904

Mya arenaria

"Mya arenaria, in living position." -Taylor, 1904

"Mya truncata, in living position." -Taylor, 1904

Mya truncata

"Mya truncata, in living position." -Taylor, 1904

Half an Oyster Shell.

Oyster

Half an Oyster Shell.

An edible bivavle mollusk, closely allied to the mussels, and which forms an important article of commerce. Oysters are found near the shores of salt and brackish water, where they are moored by the left shell to stones or other hard substances. They feed principally on microscopic beings an particles of organic matter which they take in from the currents of water by the mouth at the hinge end of the shell.

Oyster

An edible bivavle mollusk, closely allied to the mussels, and which forms an important article of commerce.…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell is a soft body.

Oyster

Oysters grow for the most part in marine or brackish water. Inside a usually highly calcified shell…

"Anatomy of the Oyster. A. Hinge or anterior umbonal end of the left valve of an adult oyster, upon which the soft parts of the animal are represented as they lie in situ, but with the greater part of the mantle of the right side removed. a u. The auricle of the right side of the heart contracted. B. Posterior or ventral end of the left valve, which in life is usually directed upward more or less, and during the act of feeding and respiration is separated slightly from the margin of its fellow of the opposite side to admit the water for respiration, and which also contains the animal's food in suspension. b m. Body-mass, traversed superficially by the generative ducts g e. b j. The organ of Bojanus, or 'renal' organ, of the right side of the oyster. (The ducts which it sends into the manle are not shown, nor is its connection with the genito-urinary sinus s indicated.)" &mdash; Winston's Encyclopedia, 1919

Oyster

"Anatomy of the Oyster. A. Hinge or anterior umbonal end of the left valve of an adult oyster, upon…

"A salt-water mollusk, highly esteemed as an article of food." -Foster, 1921.

Oyster

"A salt-water mollusk, highly esteemed as an article of food." -Foster, 1921.

An illustration of a oyster shell. The common name oyster is used for a number of different groups of bivalve mollusks, most of which live in marine habitats or brackish water. The shell consists of two usually highly calcified valves which surround a soft body. Gills filter plankton from the water, and strong adductor muscles are used to hold the shell closed.

Oyster Shell

An illustration of a oyster shell. The common name oyster is used for a number of different groups of…

An illustration of a oyster shell. The common name oyster is used for a number of different groups of bivalve mollusks, most of which live in marine habitats or brackish water. The shell consists of two usually highly calcified valves which surround a soft body. Gills filter plankton from the water, and strong adductor muscles are used to hold the shell closed.

Oyster Shell

An illustration of a oyster shell. The common name oyster is used for a number of different groups of…

An illustration of a oyster shell. The common name oyster is used for a number of different groups of bivalve mollusks, most of which live in marine habitats or brackish water. The shell consists of two usually highly calcified valves which surround a soft body. Gills filter plankton from the water, and strong adductor muscles are used to hold the shell closed.

Oyster Shell

An illustration of a oyster shell. The common name oyster is used for a number of different groups of…

A calcareous secretion formed chiefly of calcium carbonate, and found as a morbid deposit around a central nucleus within the shells of various mollusks, especially those of pearl-oysters and river mussels.

Pearl

A calcareous secretion formed chiefly of calcium carbonate, and found as a morbid deposit around a central…

"Furnishes the fines pearls; the shells are also imported in vast quanities, the inner layer, known as "mother of pearl", being used for a great number of ornamental purposes." &mdash; Goodrich, 1859

Pearl-oyster

"Furnishes the fines pearls; the shells are also imported in vast quanities, the inner layer, known…

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Coral Pecten.

Pecten Foliaceus.

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Coral Pecten.

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Northern Pecten.

Pecten Islandicus (Chemnitz.)

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Northern Pecten.

"The Watered Pecten belongs to the scallop-shells. The shell is generally nearly circular, more or less elongated, and terminated toward the summit in a straight line."

Pecten Pseudamussium (Chenu.)

"The Watered Pecten belongs to the scallop-shells. The shell is generally nearly circular, more or less…

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Purple Pecten.

Pecten Purpuratus (Lamarck.)

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Purple Pecten.

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Tiger Pecten.

Pecten Tigris (Lamark.)

Smooth-shelled Pectens have colors that are frequently lively and brilliant. This is the Tiger Pecten.

"Pecten varius." -Taylor, 1904

Pecten varius

"Pecten varius." -Taylor, 1904

"Pectunculus glycimeris." -Taylor, 1904

Pectunculus glycimeris

"Pectunculus glycimeris." -Taylor, 1904

"On the shores of the Mediterranean and along the Atlantic coast, species of the genus <em>Pectunculus</em> are abundant. When taken alive, the animal sometimes exudes a thick mucous liquid over the shell, which has disgusted many a young collector with his capture."

Pectunculus Scriptus (Lamarck)

"On the shores of the Mediterranean and along the Atlantic coast, species of the genus Pectunculus…

Shells of a pelecypod found in the elevated sand beds of northeastern New England, New Brunswick, etc. This species still lives in the modern ocean.

Pelecypod

Shells of a pelecypod found in the elevated sand beds of northeastern New England, New Brunswick, etc.…

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate its cell at the bottom of one of these gloomy retreats seems to be all that the animal lives for.

Pholas Crispata (Linnaeus)

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate…

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate its cell at the bottom of one of these gloomy retreats seems to be all that the animal lives for.

Pholas Dactylus (Linnaeus)

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate…

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate its cell at the bottom of one of these gloomy retreats seems to be all that the animal lives for.

Pholas Melanoura (Sowerby)

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate…

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate its cell at the bottom of one of these gloomy retreats seems to be all that the animal lives for.

Pholas Papyracea (Solander)

This species is able to hollow out a home in a solid block of gneiss, one of the hardest rocks. To excavate…

"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…

A small mollusk. Burrows in soft rocks and is frequently killed by the cold when exposed during times of low tide.

Piddock

A small mollusk. Burrows in soft rocks and is frequently killed by the cold when exposed during times…

"The genus <em>Pinna</em> was so called from its resemblance to the plumelet which the Roman soldiers attached to their helmets. The animal is thick, elongated, with mantle open behind, presenting a conical, furrowed foot, bearing a considerable byssus."

Pinna Bullata (Swainson)

"The genus Pinna was so called from its resemblance to the plumelet which the Roman soldiers…

"The genus <em>Pinna</em> was so called from its resemblance to the plumelet which the Roman soldiers attached to their helmets. The animal is thick, elongated, with mantle open behind, presenting a conical, furrowed foot, bearing a considerable byssus."

Pinna Nigrina (Lamarck)

"The genus Pinna was so called from its resemblance to the plumelet which the Roman soldiers…

"The genus <em>Pinna</em> was so called from its resemblance to the plumelet which the Roman soldiers attached to their helmets. The animal is thick, elongated, with mantle open behind, presenting a conical, furrowed foot, bearing a considerable byssus."

Pinna Nobilis, with its byssus (Linnaeus)

"The genus Pinna was so called from its resemblance to the plumelet which the Roman soldiers…

"The genus <em>Pinna</em> was so called from its resemblance to the plumelet which the Roman soldiers attached to their helmets. They are of a brown, smoky color, with a fibrous, horny shell, very thin and fragile."

Pinna Rudis (Linnaeus)

"The genus Pinna was so called from its resemblance to the plumelet which the Roman soldiers…

The large round edible clam of the Atlantic Coast of the United States.

Quahog

The large round edible clam of the Atlantic Coast of the United States.

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

River Mussel

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

Scallops are distinguished by the regular ribs of the shell, and by the two angular projections that widen the sides of the hinge.

Scallop

Scallops are distinguished by the regular ribs of the shell, and by the two angular projections that…

Scallop; also known as the crusader's badge. While at rest the scallop lies on the bottom with its valves widely gaped open.

Scallop

Scallop; also known as the crusader's badge. While at rest the scallop lies on the bottom with its valves…

"The edible portion of this shellfish, as prepared for the market, is the adductor muscle."

Scallop

"The edible portion of this shellfish, as prepared for the market, is the adductor muscle."

The name of several species of shell-fish, so called from their round, ribbed shell with scalloped edges. They are classes as bivalves, having shells connected at the upper side with a hinge.

Scallop

The name of several species of shell-fish, so called from their round, ribbed shell with scalloped edges.…

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.

<em>Pecten irradians</em>, the common scallop of the Atlantic coast.

Atlantic Bay Scallop

Pecten irradians, the common scallop of the Atlantic coast.

Sea Shells

Sea Shells

Sea Shells

Cockle shell.

Shell

Cockle shell.

An illustration of a Club-shell fossil from the Tertiary period. The Tertiary is a an out-of-date term for a geologic period 65 million to 1.8 million years ago. The Tertiary covered the time span between the superseded Secondary period and an out-of-date definition of the Quaternary period. The period began with the demise of the non-avian dinosaurs in the Cretaceous&ndash;Tertiary extinction event, at start of the Cenozoic era, spanning to beginning of the most recent Ice Age, at the end of the Pliocene epoch.

Shell Fossil

An illustration of a Club-shell fossil from the Tertiary period. The Tertiary is a an out-of-date term…

External features of a clam shell.

Clam Shell

External features of a clam shell.

Inside of right valve of clam shell.

Clam Shell

Inside of right valve of clam shell.

Clam in natural position with foot and siphons extended.

Clam Shell

Clam in natural position with foot and siphons extended.

Mechanism for opening and shutting a clam shell, note the internal and external hinge ligament..

Clam Shell

Mechanism for opening and shutting a clam shell, note the internal and external hinge ligament..