This ClipArt gallery includes 130 illustrations of squid, octopus, nautilus, and ammonites. These animals are members of the mollusk (or mollusc) class of cephpalopods, named cephalopoda.

An illustration of an Ammon's Horn shell, a fossil shell, curved like a ram's horn. A name previously used to classify ammonites.

Ammon's Horn (Shell)

An illustration of an Ammon's Horn shell, a fossil shell, curved like a ram's horn. A name previously…

"They were of various forms, but they were of carnivorous habits, resembling the speias, and, like the nautili, living in chambered shells." — Goodrich, 1859

Ammonite

"They were of various forms, but they were of carnivorous habits, resembling the speias, and, like the…

"So called from their resemblance to a ram's horn."-Whitney, 1902

Ammonite

"So called from their resemblance to a ram's horn."-Whitney, 1902

"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart, 1911)

Ammonite

"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart,…

"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart, 1911)

Ammonite

"Ammonite is the name for a large genus of fossil chambered shells."—(Charles Leonard-Stuart,…

"Ammonites obtusus." — Chambers' Encyclopedia, 1875

Ammonite

"Ammonites obtusus." — Chambers' Encyclopedia, 1875

"Section of Ammonites obtusus, showing the interior chambers and siphuncle." — Chambers' Encyclopedia, 1875

Ammonite

"Section of Ammonites obtusus, showing the interior chambers and siphuncle." — Chambers' Encyclopedia,…

"Ammonites nodosus." — Chambers' Encyclopedia, 1875

Ammonite

"Ammonites nodosus." — Chambers' Encyclopedia, 1875

a fossil cephalopod similar to the nautilisk.

Ammonite

a fossil cephalopod similar to the nautilisk.

a fossil cephalopod similar to the nautilisk.

Ammonite

a fossil cephalopod similar to the nautilisk.

a fossil cephalopod similar to the nautilisk.

Ammonite

a fossil cephalopod similar to the nautilisk.

Ammonite, side view. Where the shell has been partly worn away near the aperture, the complex "suture line" is shown.

Ammonite

Ammonite, side view. Where the shell has been partly worn away near the aperture, the complex "suture…

"Ammonites bifrons. Side view of ditto." -Taylor, 1904

Ammonite bifrons

"Ammonites bifrons. Side view of ditto." -Taylor, 1904

"Ammonites communis. Side view of ditto." -Taylor, 1904

Ammonites communis

"Ammonites communis. Side view of ditto." -Taylor, 1904

"Ammonites obtusus. Side view of ditto." -Taylor, 1904

Ammonites obtusus

"Ammonites obtusus. Side view of ditto." -Taylor, 1904

"Goniatites henslowi. GONIOTITES. A genus of fossil ammonites, giving name to the family Goniatitidae, having a discoid shell with angulated lobed sutures." -Whitney, 1911

Ammonoid

"Goniatites henslowi. GONIOTITES. A genus of fossil ammonites, giving name to the family Goniatitidae,…

Ancyloceras, an ammonite.

Ancyloceras

Ancyloceras, an ammonite.

"A genus of cephalapodous mollusca, pretty generally known by the name of Paper Nautilus, and in consequence of similarity in the form of the shell, often confounded with the genus Nautilus, but in fact much more nearly allied to the Poulpe (Octopus)." — Chambers' Encyclopedia, 1875

Argonaut

"A genus of cephalapodous mollusca, pretty generally known by the name of Paper Nautilus, and in consequence…

The paper nautilus or argonaut, a cuttlefish.

Argonaut

The paper nautilus or argonaut, a cuttlefish.

"Argonaut with the shell." — Goodrich, 1859

Argonaut (with shell)

"Argonaut with the shell." — Goodrich, 1859

"The argonaut retired within its shell." — Goodrich, 1859

Argonaut (within shell)

"The argonaut retired within its shell." — Goodrich, 1859

"Argonaut without the shell." — Goodrich, 1859

Argonaut (without shell)

"Argonaut without the shell." — Goodrich, 1859

The greater argonaut (Argonauta argo) is a cephalopod and a species of pelagic octopus also known as a paper nautilus.

Greater Argonaut

The greater argonaut (Argonauta argo) is a cephalopod and a species of pelagic octopus also known as…

"The uppermost figure in the illustration shows the Argonaut in the act of swimming. The extremity of the siphon is seen projecting immediately below the eye, and the reader will at once understand that if the action forcibly ejects water from the tube, the effect will be to drive the animal rapidly in the contrary direction; that is, from right to left, as seen in the engraving. The third figure represents an empty shell, and is given for the purpose of showing the partially spiral and deeply grooved keel, as well as the extreme tenuity of the shell itself."

Argonaut, or Paper Nautlius

"The uppermost figure in the illustration shows the Argonaut in the act of swimming. The extremity of…

"Male of Argonauta showing "hectocotylus" arm." -Thomson, 1916

Argonauta

"Male of Argonauta showing "hectocotylus" arm." -Thomson, 1916

"Argonauta argo (male), with hectocotylized arm attatched. (several times smaller than the female, though shown larger."-Whitney, 1902

Argonauta argo

"Argonauta argo (male), with hectocotylized arm attatched. (several times smaller than the female, though…

"Argonauta argo (female), swimming in the direction of the large arrow- the smaller showing the current from the siphon."-Whitney, 1902

Argonauta argo

"Argonauta argo (female), swimming in the direction of the large arrow- the smaller showing the current…

"Male of Argonauta argo, with the hectocotylized arm still ontained in its enveloping cyst, four times enlarged." — Encyclopedia Britannica, 1893

Argonauta Argo

"Male of Argonauta argo, with the hectocotylized arm still ontained in its enveloping cyst, four times…

Male of Argonauta argo, with the hectocotylized arm still contained in its enveloping cyst.

Argonauta Argo

Male of Argonauta argo, with the hectocotylized arm still contained in its enveloping cyst.

"The Paper-nautilus, or Argonaut, [floats] gracefully on the surface of the sea, trimming its tiny sail to the breeze, just sufficient to ruffle the surface of the waves, it looks like an exquisite living shallop."

Argonauto Argo (Linnaeus)

"The Paper-nautilus, or Argonaut, [floats] gracefully on the surface of the sea, trimming its tiny sail…

"The argonaut can blush, turn pale, and show through its transparent shell its body changing in sudden shades."

Argonauta Papyracea in its Shell

"The argonaut can blush, turn pale, and show through its transparent shell its body changing in sudden…

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common with all Cephalopods, and which is very long in the argonaut. Aided by this apparatus, it ejects water after it has served the purpose of respiration, and in doing so, projects itself through the water."

Argonauta Papyracea Swimming

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common…

"Liassic 'Thunder bolt' (Belemnites hastata)." -Taylor, 1904

Belemnite

"Liassic 'Thunder bolt' (Belemnites hastata)." -Taylor, 1904

"Belemnite (restored)." -Taylor, 1904

Belemnite

"Belemnite (restored)." -Taylor, 1904

"Oolitic 'Thunder-bolt' (Belemnites abbreviatus)." -Taylor, 1904

Belemnites abbreviatus

"Oolitic 'Thunder-bolt' (Belemnites abbreviatus)." -Taylor, 1904

"Natural flint cast of phragmocone of...Belemnites mucronatus." -Taylor, 1904

Belemnites Fossil

"Natural flint cast of phragmocone of...Belemnites mucronatus." -Taylor, 1904

"Belemnites mucronatus." -Taylor, 1904

Belemnites mucronatus

"Belemnites mucronatus." -Taylor, 1904

"Oolitic 'Thunder-bolt' (Belemnites puzosianus)." -Taylor, 1904

Belemnites puzosianus

"Oolitic 'Thunder-bolt' (Belemnites puzosianus)." -Taylor, 1904

"A small species, the body three to four inches long, beak prominent and horny; the long arms slender, and terminating in a point." — Goodrich, 1859

Loligo brevipinna

"A small species, the body three to four inches long, beak prominent and horny; the long arms slender,…

"The Pen-Fish or Common Calamary, <em>L. vulgaris</em>, is the best-known species of the genus; the body is somewhat pellucid, of a greenish hue, changeable to dirty brown; the eyes are large and lustrous, of an emerald green, phosphoric, and fiery in a high degree. It is common in the european seas, and was known to the ancient Greeks and Romans. [Shown with a quill pen]" &mdash; Goodrich, 1859

Common calamari

"The Pen-Fish or Common Calamary, L. vulgaris, is the best-known species of the genus; the…

The cephalopods are the mollusk class Cephalopoda characterized by bilateral body symmetry, a prominent head, and a modification of the mollusk foot, a muscular hydrostat, into the form of arms or tentacles. Teuthology, a branch of malacology, is the study of cephalopods. The class contains two extant subclasses. In the Coleoidea, the mollusk shell has been internalized or is absent; this subclass includes the octopuses, squid, and cuttlefish. In the Nautiloidea the shell remains; this subclass includes the nautilus. About 786 distinct living species of cephalopods have been identified. Two important extinct taxa are Ammonoidea, the ammonites, and Belemnoidea, the belemnites Cephalopods are found in all the oceans of Earth, at all depths. None of them can tolerate freshwater, but a few species tolerate more or less brackish water.

Cephalopod

The cephalopods are the mollusk class Cephalopoda characterized by bilateral body symmetry, a prominent…

A simple straight-shelled cephalopod. Where the shell has been removed, the straight sutures are shown.

Cephalopod

A simple straight-shelled cephalopod. Where the shell has been removed, the straight sutures are shown.

"Cephalopoda is a class of mollusks, the highest in organization of the division of the animal kingdom. To this class belong the Nautili, Squids, Cuttle-fish, etc. The Cephalopoda receive their name from having organs of prehension and locomotion attached to the head, an arrangement toward which a gradual approach may be traced in the highest gasteropod mollusks."&mdash;(Charles Leonard-Stuart, 1911)

Cephalopoda

"Cephalopoda is a class of mollusks, the highest in organization of the division of the animal kingdom.…

"Has the body eight inches long, and the longest tentacles nearly three feet." &mdash; Goodrich, 1859

Bonelli's Cheiroteuthis

"Has the body eight inches long, and the longest tentacles nearly three feet." — Goodrich, 1859

"In one genera [of the <em>Octopodidae</em> family] the arms are completely united in their whole extent by a thin membrane."

Cirrhoteuthis Mulleri (Eschricht)

"In one genera [of the Octopodidae family] the arms are completely united in their whole extent…

An illustration of a Cirrhoteuthis Mulleri, a species of octopus.

Cirrhoteuthis Mulleri

An illustration of a Cirrhoteuthis Mulleri, a species of octopus.

A molluscous animal, having arms furnished with sucking-cups, by means of which it attaches itself tenaceously to other bodies. When pursued, it throws out a blackish liquor that darkens the water, enabling it to escape observation.

Cuttle-fish

A molluscous animal, having arms furnished with sucking-cups, by means of which it attaches itself tenaceously…

Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squid and nautilus.

Cuttle-fish

Cuttlefish are animals of the order Sepiida, and are marine cephalopods, small relatives of squid and…

Cuttlefish "bone" or internal shell. The fine point at the base structure represents the guard of the Belemnite.

Cuttlebone

Cuttlefish "bone" or internal shell. The fine point at the base structure represents the guard of the…

The body of the cuttlefish is soft and covered only with a leathery skin. Its eight arms are very long.

Cuttlefish

The body of the cuttlefish is soft and covered only with a leathery skin. Its eight arms are very long.

Cephalopods are the most highly organized Molluscs. The head is distinct, carrying two large globular eyes, and having the mouth in its center.

Cuttlefish

Cephalopods are the most highly organized Molluscs. The head is distinct, carrying two large globular…

"The cuttlefishes have a strange method of walking, head-downward, on their outspread arms; they can also swim with their fins, or with their webbed arms, or by expelling the water forcibly from their branchial chamber." &mdash; Goodrich, 1859

Cuttlefish

"The cuttlefishes have a strange method of walking, head-downward, on their outspread arms; they can…

"It has no shell, and no skeleton, but has two conical pieces of horny substance imbedded in the back, one on each side. The body, which has a globular form, is a soft, jelly-like substance, covered with a thick, dark-colored, leathery skin." &mdash; Goodrich, 1859

Cuttlefish

"It has no shell, and no skeleton, but has two conical pieces of horny substance imbedded in the back,…

"Twelve to eighteen inches long; the skin smooth, whitish, and spotted with brown and purple." &mdash; Goodrich, 1859

Cuttlefish

"Twelve to eighteen inches long; the skin smooth, whitish, and spotted with brown and purple." —…

A fish with eight arms.

Cuttlefish

A fish with eight arms.

The side view of Sepia officinalis, or the common cuttlefish.

Cuttlefish

The side view of Sepia officinalis, or the common cuttlefish.

Cuttlefish are marine animals of the order Sepiida belonging to the Cephalopoda class. Despite their name, cuttlefish are not fish but molluscs. Cuttlefish have an internal shell (cuttlebone), large W-shaped pupils, and eight arms and two tentacles furnished with denticulated suckers, with which they secure their prey.

Cuttlefish

Cuttlefish are marine animals of the order Sepiida belonging to the Cephalopoda class. Despite their…

A man in the grasp of a large cuttlefish on the sea-shore." &mdash; Goodrich, 1859

Cuttlefish and man

A man in the grasp of a large cuttlefish on the sea-shore." — Goodrich, 1859

"Bunch of Sepia eggs attached to plant." -Thomson, 1916

Cuttlefish Eggs

"Bunch of Sepia eggs attached to plant." -Thomson, 1916

"Diagram of the structure of Sepia. a., Eight short arms around mouth; l.a., one of the two long arms; b., beak of the mouth; c.g., cerebral ganglia, with commissures to the others; E., eye; g., gullet; d.g., digestive gland (the "salivary glands" are not represented); st., stomach; a., anus; sh., shell-sac with sepiostaire; k., kidney; R., reproductive organ; br.h., branchial heart; g., a gill; i.b., ink-bag; m.c., mantle cavity; f., funnel." -Thomson, 1916

Cuttlefish Structure

"Diagram of the structure of Sepia. a., Eight short arms around mouth; l.a., one of the two long arms;…