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"Dentalium: B, the shell of Dentalium Entalis, broken longitudinally, showing the animal in a contracted state. C, the shell, showing the animal advancing out; a and b, the foot, the lobes of which are developed in the form of a corolla; c, a part of the collar of the mantle. E, the animal, magnified, extricated from the shell, with them antle slit along the dorsal and medial line, detached in part from its posterior insertion, and turned aside so as to show the parts enclosed; a, the extremity of the foot, which closes the aperture j, of the collar lm, of the mantle nop; bb, lobes of the fot; c, the foot itself, presenting a depression or a channel, running its whole length; d, the head; e, the cerebral ganglion; f, f, the two sides of the mouth; g, g, the membranes which support the branchiae; gg, ii, the branchiae; pp, qq, the retractor muscles; s, the muscle of insertion; t, the expanded posterior extremity, in which is situated the vent." — Chambers' Encyclopedia, 1875

Dentalium

"Dentalium: B, the shell of Dentalium Entalis, broken longitudinally, showing the animal in a contracted…

"Dorsal View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney, 1911

Dorsal View of Gastrochaena

"Dorsal View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney,…

"Lateral View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney, 1911

Lateral View of Gastrochaena

"Lateral View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney,…

"Ventral View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney, 1911

Ventral View of Gastrochaena

"Ventral View of Gastrochaena. The ventral view shows the dried mantle with pedal perforation." -Whitney,…

An illustration of a mantle, a type of loose garment usually worn over indoor clothing to serve the same purpose as an overcoat, on a guard.

Mantle

An illustration of a mantle, a type of loose garment usually worn over indoor clothing to serve the…

In the story of Balin and Balan, the image depicts the damsel removing her mantle in front of King Arthur and his followers.

The Damsel Let Fall Her Mantle

In the story of Balin and Balan, the image depicts the damsel removing her mantle in front of King Arthur…

"Anatomy of an Acephalous Mollusc (Mactra): s, stomach; ii, intestine; ag, anterior ganglions; pg, posterior ganglions; mn, muscles; a, anus; h, heart; l, liver; f, foot; sh, shell; ma, mantle; b, branchiae; t, tentacula; r, oral, or respiratory syphon; t, anal syphon." — Chambers, 1881

Mollusc Anatomy

"Anatomy of an Acephalous Mollusc (Mactra): s, stomach; ii, intestine; ag, anterior ganglions; pg, posterior…

Slugs are air-breathing, terrestrial gastropods, almost always destitute of a shell. Slugs are nocturnal, hence are less conspicuous than snails.

Slug

Slugs are air-breathing, terrestrial gastropods, almost always destitute of a shell. Slugs are nocturnal,…