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Snail shell on a white background

Close up image of a white shell with natural background.

Close up of a snail on the ground

Close up on the shell of a snail. Selective focus, dark background

Macro photography of brown snail shell on white background

A brown snail shell illuminated by the evening sun and photographed on a stone background with a macro lens, high resolution with copy space

Snail

Close-Up Of Shell Clam Against White Background.

Macro shot of a brown snail shell, close-up

common snail in lateral view

white and brown sea snail shell. background

Isolated Nautilus Shell with path

Many species of gastropods have a more or less large outer shell: atrophied in slugs, it is large enough to shelter the whole animal in snails for example; it then constitutes protection against predators and drought. These shells, called univalves, have special features compared to the shells of other molluscs. They are optional or compulsory calcicole (limestone obtained in the plants on which they feed or by scraping the calcareous mineral substrates), more rarely calcifuge and in regions with non-calcareous soil can chew the shell of other individuals (case of parasitism), bone, eggshells. The shell is secreted by a thick fold of skin, called the mantle. It is mainly composed of calcium carbonate. Gastropods therefore need a diet rich in calcium.

Shell Collection

Macro shot of a spiral of a shell of a grape snail

Hard fresh clam on white background - stock photo.

Shellfish,Japanese littleneck clam

a pile of sea snails with brown and white stripes on their shells. They are stacked together, displaying a variety of shapes and colors, highlighting their natural beauty

A digital illustration of a golden snail shell on brown leaves

Small Brown Garden Snail

Snail, a lifeless snail shell in a garden in Brazil, selective focus.

A painter mussel, Unio pictorum, in fluvial sediments of a river

Fresh raw clams on white background studio shot.

Freshwater snail shell under water

Shell Collection

Detailed closeup on a Kentish garden Snail , Monacha cantiana sitting on wood

Macro of Escargot shells on slate background.

Macro on a red slug, Arion rufus, isolated on white

Slug With Grass On Rainy Day

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Snail,U,_face,_Biscayne_National_Park_2013-01-22-15.20.21_ZS_PMax.jpg

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