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"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much sought after by collectors in consequence of their great beauty"

Cytherea Petechialis (Lamarck)

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much…

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much sought after by collectors in consequence of their great beauty"

Cytherea Zonaria (Lamarck)

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much…

"The Greek Fissurella, <em>F. Gr&aelig;ca</em>, is found in the Mediterranean and the Indian Ocean. There are only one hundred and twenty other known species of this genus." &mdash; Goodrich, 1859

Greek fissurella

"The Greek Fissurella, F. Græca, is found in the Mediterranean and the Indian Ocean.…

Galatea reclusa is a species of bivalve mollusk in the Donacidae family of bean clams (wedge shells).

Right Valve of Galatea Bivalve

Galatea reclusa is a species of bivalve mollusk in the Donacidae family of bean clams (wedge shells).

In high orders of Mollusca the circulation resembles that of fish. Shown is the heart and arteries of a snail. Labels: 2, The stomach. 3, Intestines. 5, Heart. 6, Aorta. 7, Pulmonary artery.

The Heart and Arteries of a Snail

In high orders of Mollusca the circulation resembles that of fish. Shown is the heart and arteries of…

"Many species hibernate. The land-snails bury themselves in the ground, or conceal themselves under the back of trees, in holes in walls, or even in the stems of large umbelliferous plants. They close the mouth of the shell with a calcareous plate, technically called an epiphragm, which they secrete by means of their mantle, and which is perforated by a small hole to admit the air." &mdash; Encyclopediia Britannica, 1893

Helix Descrtorun

"Many species hibernate. The land-snails bury themselves in the ground, or conceal themselves under…

"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…

"[From left to right:] Cockles, Imperial Volute, Clown Volute, Pholas, Helmet Shell" &mdash; Goodrich, 1859

Mollusca

"[From left to right:] Cockles, Imperial Volute, Clown Volute, Pholas, Helmet Shell" — Goodrich,…

A sub-kingdom of animals embracing a division of the invertebrates. It includes especially those having an unsegmented bilateral body; four nervecords arranged in pairs, two visceral and two pedal, with lateral and medial abdominal ganglia.

Mollusca

A sub-kingdom of animals embracing a division of the invertebrates. It includes especially those having…

A diagram of a mollusca. Mollusca are soft-bodied animals that are usually protected by an external skeleton or shell composed of carbonate of lime. Labels: 1, Alimentary canal. 2, Heart. 3, Cerebral ganglion. 4, Pedal ganglion. 5, Ganglion of digestive organs and muscles.

Diagram of a Mollusca

A diagram of a mollusca. Mollusca are soft-bodied animals that are usually protected by an external…

In the Mollusca are found the ganglions and connective arrangement, with both sensitive and motor nerves, and on a plan corresponding to the body. Labels: 1, Esophagal ganglions. 2, Cerebral ganglions. , Pedal of locomotive ganglions. 4, Respiratory ganglions.

Diagram of a Type of Mollusca

In the Mollusca are found the ganglions and connective arrangement, with both sensitive and motor nerves,…

Naticina papilla is a species of naticoid, a predatory sea snail in the gastropod class of Mollusca.

Naticoid

Naticina papilla is a species of naticoid, a predatory sea snail in the gastropod class of Mollusca.

Naticina haliotoides is a species of naticoid, a predatory sea snail in the gastropod class of Mollusca.

Naticoid

Naticina haliotoides is a species of naticoid, a predatory sea snail in the gastropod class of Mollusca.

The nautilus is a true mollusc. (a) mantle; (o) eye; (t) tentacles; (f) funnel.

Nautilus

The nautilus is a true mollusc. (a) mantle; (o) eye; (t) tentacles; (f) funnel.

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in which it hides when disturbed.

Paper Nautilus

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in…

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in which it hides when disturbed.

Paper Nautilus

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in…

The paper-nautilus is closely related to the Octopus.

Paper Nautilus

The paper-nautilus is closely related to the Octopus.

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.

"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…

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 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…

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…

Parts of a snail shell.

Snail Shell

Parts of a snail shell.

A kind of snail shell; the left-hand shell.

Snail Shell

A kind of snail shell; the left-hand shell.

A kind of snail shell; the flat spiral or discoid shell.

Snail Shell

A kind of snail shell; the flat spiral or discoid shell.

A kind of snail shell; the right -hand shell.

Snail Shell

A kind of snail shell; the right -hand shell.

Numerous mussels shells packed tightly together.

Mussel Shells

Numerous mussels shells packed tightly together.

"A gastropod of the family Ovulidae and genus Radius, as R. volva, of long fusiform shape, the ends of the lips being greatly drawn out; so called from the resemblance to a weavers' shuttle." -Whitney, 1911

Shuttle Shell

"A gastropod of the family Ovulidae and genus Radius, as R. volva, of long fusiform shape, the ends…

In this species of pond snail, the aperture of the shell is not closed by an operculum.

Pond Snail

In this species of pond snail, the aperture of the shell is not closed by an operculum.

In this species of pond snail, the aperture of the shell is closed by an operculum.

Pond Snail

In this species of pond snail, the aperture of the shell is closed by an operculum.

In this species of pond snail, the aperture of the shell is closed by an operculum.

Pond Snail

In this species of pond snail, the aperture of the shell is closed by an operculum.

"The more remarkable species of the genus <em>Spondylus</em>; their valves are unequal."

Spondylus Crassisquama (Lamarck.)

"The more remarkable species of the genus Spondylus; their valves are unequal."

"The more remarkable species of the genus <em>Spondylus</em>; their valves are unequal."

Spondylus Gaederopus (Lina.)

"The more remarkable species of the genus Spondylus; their valves are unequal."

"The more remarkable species of the genus <em>Spondylus</em>; their valves are unequal."

Spondylus Imperialis (Chemn.)

"The more remarkable species of the genus Spondylus; their valves are unequal."

"The more remarkable species of the genus <em>Spondylus</em>; their valves are unequal. A native of the Indian Ocean and rarely met with."

Spondylus Regius (Linn.)

"The more remarkable species of the genus Spondylus; their valves are unequal. A native of…

The Atlantic Bobtail (Sepiola atlantica) is a cephalopod in the Sepiolidae family of bobtail squids.

Atlantic Bobtail

The Atlantic Bobtail (Sepiola atlantica) is a cephalopod in the Sepiolidae family of bobtail squids.

"The center is a bright violet, with brownish longitudinal, punctured lines. All these are inhabitants of the tropical seas."

Tridacna Squamosa (Inside) (Lamarck)

"The center is a bright violet, with brownish longitudinal, punctured lines. All these are inhabitants…

"The center is a bright violet, with brownish longitudinal, punctured lines. All these are inhabitants of the tropical seas."

Tridacna Squamosa (Outside) (Lamarck)

"The center is a bright violet, with brownish longitudinal, punctured lines. All these are inhabitants…

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much sought after by collectors in consequence of their great beauty"

Venus Gnidia (Broderip)

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much…

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much sought after by collectors in consequence of their great beauty"

Venus Plicata (Gmel.)

"Among the cast number of species belonging to the Veneridae family, many are extremely rare, and much…