Snail
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A snail is a shelled gastropod. The name is most often applied to land snails, terrestrial pulmonate gastropod molluscs. However, the common name snail is also used for most of the members of the moll
Snail
Helix pomatia sealed in its shell with a calcareous epiphragm
Snail shell
Slug
Slug
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Slug or land slug is a common name for any apparently shell-less terrestrial gastropod mollusc. The word slug is also often used as part of the common name of any gastropod mollusc that has no shell,
Snail
…also numerous species of sea snails and freshwater snails. Gastropods that naturally lack a shell, or have only an internal shell, are mostly called slugs, and land snails that have only a very small shell (that they cannot retract into) are sometimes called semi-slugs. Snails that respire using a lung…
Slug in Van Dusen Botanical Garden
An active Ambigolimax slug in Fremont, California
Deroceras juvenile with eggs of another (larger) slug species, most likely Arionidae
Pair of mating Leopard slugs (Limax maximus), suspended by mucous thread and pad on wall