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A swirl shaped shell.

Shell

A swirl shaped shell.

"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…

The shell of a Slit Worm Snail (Siliquaria anguina). The species is a gastropod mollusc that has an eloongated shell with a narrow slit down its length.

Slit Worm Snail

The shell of a Slit Worm Snail (Siliquaria anguina). The species is a gastropod mollusc that has an…

The shell of the Tulip Snail (Fasciolaria tulipa), a gastropod in the Fasciolariidae family of tulips and spindles.

Shell of the Tulip Snail

The shell of the Tulip Snail (Fasciolaria tulipa), a gastropod in the Fasciolariidae family of tulips…

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more or less oblong, each new segment being nearly equal to the entire length of the shell.

Spiroloculina Depressa

One group will take the spherical form and produce a shell in the shape of the nautilus. Some are more…

"The Angel-winged is shown [here]. It is veined with stripes of white and red, and comes from the coasts of Asia and America."

Strombus Gallus (Linn.)

"The Angel-winged is shown [here]. It is veined with stripes of white and red, and comes from the coasts…

"The <em>Strombus</em> is a peculiar genus, belonging to the equatorial seas. Some of these attain great size."

Shell of Strombus Gigas

"The Strombus is a peculiar genus, belonging to the equatorial seas. Some of these attain great…

"The <em>Strombus</em> is a peculiar genus, belonging to the equatorial seas. Some of these attain great size."

Strombus Gigas (Linnaeus), with the animal

"The Strombus is a peculiar genus, belonging to the equatorial seas. Some of these attain great…

"Tellina crassa." -Taylor, 1904

Tellina crassa

"Tellina crassa." -Taylor, 1904

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case, the new segments are arranged alternately on opposite sides of the central line.

Textularia Variabilis

One group will take the spherical form and produce a shell in the shape of the nautilus. In this case,…

"The genus <em>Triton</em> is classed next to the genus <em>Murex</em>. The shell is irregularly covered with swelling excrescences, scattered all over the surface."

Triton Anus (Lamarck)

"The genus Triton is classed next to the genus Murex. The shell is irregularly covered…

"The genus <em>Triton</em> is classed next to the genus <em>Murex</em>. The shell is irregularly covered with swelling excrescences, scattered all over the surface."

Triton Iotorium (Linnaeus)

"The genus Triton is classed next to the genus Murex. The shell is irregularly covered…

"Trochus ziziphinus." -Taylor, 1904

Trochus ziziphinus

"Trochus ziziphinus." -Taylor, 1904

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Cymbium (Linnaeus)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Delessertii (Petit)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Imperialis (Lamarck)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Musica (Linn.)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Scapha (Gmel.)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Undulata (Lamarck)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating tide."

Voluta Vexillum (Chem.)

"The Volutes live in the sands near the shore; sometimes they are found high and dry, left by the retreating…

"A cartoon by Sir John Tenniel which appeared in the English journal Punch for June 10, 1854. The tsar is shown holding a bombshell to his ear and, as he listens to it (as children do to sea shells), having a vision of armed men."&mdash;Webster, 1920

What Nicholas Heard in the Shell

"A cartoon by Sir John Tenniel which appeared in the English journal Punch for June 10, 1854. The tsar…