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A slug on a wall in Kanagawa, Japan.. 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, a very reduced shell, or only a small internal shell, particularly sea slugs and semi-slugs (this is in contrast to the common name snail, which applies to ...
Land snail is the common name for terrestrial gastropod mollusks that have shells (those without shells are known as slugs). However, it is not always easy to say which species are terrestrial, because some are more or less amphibious between land and fresh water, and others are relatively amphibious between land and salt water.
The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca. ... extant with or without a ... World's Terrestrial Shells. 240 ...
A live individual of Meghimatium fruhstorferi in the wild. Philomycidae are a family of air-breathing land slugs (snails without shells or with only shell remnants). They are terrestrial pulmonate gastropod mollusks in the superfamily Arionoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).
The mollusc (or mollusk [spelling 1]) shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes. Not all shelled molluscs live in the sea; many live on the land and in freshwater.
Many land slugs lack external shells, having a vestigial shell. [2] Most slugs retain a remnant of their shell, which is usually internalized, [3] unlike other terrestrial mollusks (such as snails) which have external shells. Without such shells, slugs produce mucus, that may also contain toxins—to deter predators.
To really care for these fascinating eight-legged marine mollusks, you’ll need to ensure they’ve got enough space to swim, lots of live rock, a bed of sand, good quality water and live food ...
Molluscs are a large phylum of invertebrate animals, many of which have shells. Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons).