Snails, slugs, shells

Snail and shell identifier

The shell you brought back from the beach has a name. You just have to ask.

Molluscs let themselves be photographed without fleeing — the easiest group to capture cleanly, and yet one of the least often identified. A garden snail, a slug after rain, an empty shell: each has its species and its card.

32 species4 min read
Download on theApp Store
In brief

How do you identify a snail or a shell?

Molluscs are the easiest group to photograph cleanly: they do not flee, and an empty shell poses indefinitely. They are also among the least often identified, for lack of a readable popular guide. Image identification leans on shell shape, the number and direction of whorls, surface sculpture and colour — stable criteria, unlike those of mobile groups. For a shell, the best view is the aperture facing the lens, on a plain background. For a live snail, a three-quarter view showing both shell and foot. SafaRoll covers 32 molluscs in the catalogue.

When to use it
  • 01.

    After rain, on a snail out on the wall.

  • 02.

    On the beach, on a shell you picked up.

  • 03.

    In the vegetable patch, to learn who is eating the lettuces.

32 species · molluscs

Garden Snail

Cornu aspersum

Common

Brown-lipped Snail

Cepaea nemoralis

Common

Leopard Slug

Limax maximus

Common

Roman Snail

Helix pomatia

Common

Pacific Banana Slug

Ariolimax columbianus

Common

African Giant Snail

Lissachatina fulica

Common

California Mussel

Mytilus californianus

Common

White-lipped Snail

Cepaea hortensis

Common

Milk Snail

Otala lactea

Common

Common Periwinkle

Littorina littorea

Common

Yellow Cellar Slug

Limacus flavus

Common

Eastern Oyster

Crassostrea virginica

Common

Ash-black Slug

Limax cinereoniger

Common

Pacific Oyster

Magallana gigas

Common

Chocolate-band Snail

Eobania vermiculata

Common

Blue Mussel

Mytilus edulis

Common

Zebra Mussel

Dreissena polymorpha

Common

Turkish Snail

Helix lucorum

Common

Atlantic Ribbed Mussel

Geukensia demissa

Common

Green Ormer

Haliotis tuberculata

Common

Tiger Cowrie

Cypraea tigris

Common

Great Scallop

Pecten maximus

Common

Mimic Octopus

Thaumoctopus mimicus

Common

European Common Cuttlefish

Sepia officinalis

Uncommon

Common Octopus

Octopus vulgaris

Uncommon

Northern Quahog

Mercenaria mercenaria

Uncommon

Rosy Wolfsnail

Euglandina rosea

Uncommon

Japanese Littleneck

Ruditapes philippinarum

Uncommon

Day Octopus

Octopus cyanea

Uncommon

Common Sydney Octopus

Octopus tetricus

Uncommon

Depilatory Seahare

Aplysia depilans

Uncommon

Emperor Nautilus

Nautilus pompilius

Legendary
Frequently asked

What people often ask

Yes, and often better than a live animal: the shell carries most of the criteria, and it does not move. Set it on a plain background, aperture towards the lens.

The SafaRoll app — iOS

Identify molluscs from one photo.

SafaRoll names the species in a second and turns it into a collectible card. Free, unlimited identification, no ads.

Download on theApp Store

Free · iPhone · Unlimited identification