The gastropods, commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda.
Sea slug is a common name for some marine invertebrates with varying levels of resemblance to terrestrial slugs. Most creatures known as sea slugs are gastropods, i.e. they are sea snails that over evolutionary time have either completely lost their shells, or have seemingly lost their shells due to having a greatly reduced or internal shell. The name "sea slug" is most often applied to nudibranchs, as well as to a paraphyletic set of other marine gastropods without obvious shells.
Heterobranchia, the heterobranchs, is a taxonomic clade of snails and slugs, which includes marine, aquatic and terrestrial gastropod mollusks.
Volutoidea is a taxonomic superfamily of predatory sea snails, marine gastropod mollusks in the clade Neogastropoda.
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the absence of a visible shell.
Dicathais is a genus of predatory sea snails, marine gastropod molluscs in the family Muricidae, the rock snails. This genus is monotypic; the only species in it is Dicathais orbita, common name the white rock shell or cart-rut shell, found round the coasts of Australia and New Zealand.
Hexachaeta cronia is a species of tephritid or fruit flies in the genus Hexachaeta of the family Tephritidae.
Freshwater snails are gastropod mollusks which live in fresh water. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers. The great majority of freshwater gastropods have a shell, with very few exceptions. Some groups of snails that live in freshwater respire using gills, whereas other groups need to reach the surface to breathe air. In addition, some are amphibious and have both gills and a lung. Most feed on algae, but many are detritivores and some are filter feeders.
Cronia amygdala is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Cronia aurantiaca is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Cronia avellana is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Usilla tosana is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Ergalatax crassulnata, common name : the coarse cronia, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Cronia is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Eupleura is a genus of sea snails, marine gastropod mollusks in the family Muricidae, the murex snails or rock snails.
Planaxis is a genus of small sea snails, marine gastropod mollusks in the family Planaxidae.
Ergalataxinae is a taxonomic subfamily of small to medium-sized predatory sea snails, marine gastropod mollusks within the family Muricidae, the rock snails. In this subfamily, the aragonitic shell has 0–2 varices.
Conus is a genus of predatory sea snails, or cone snails, marine gastropod mollusks in the family Conidae. Prior to 2009, cone snail species had all traditionally been grouped into the single genus Conus. However, Conus is now more precisely defined, and there are several other accepted genera of cone snails. For a list of the currently accepted genera, see Conidae.
Terrestrial molluscs or land molluscs (mollusks) are an ecological group that includes all molluscs that live on land in contrast to freshwater and marine molluscs. They probably first occurred in the Carboniferous, arising from freshwater ones.
