| Pseudostomatella orbiculata | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Vetigastropoda |
| Order: | Trochida |
| Superfamily: | Trochoidea |
| Family: | Trochidae |
| Subfamily: | Stomatellinae |
| Genus: | Pseudostomatella |
| Species: | P. orbiculata |
| Binomial name | |
| Pseudostomatella orbiculata (A. Adams, 1850) | |
| Synonyms | |
| |
Pseudostomatella orbiculata is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails. [1]
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This marine species is found in raised beach deposits off the Algoa Bay along the South African east coast.
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 molluscan class Gastropoda that have a coiled shell that is large enough for the animal to retract completely into. When the word "snail" is used in this most general sense, it includes not just land snails but 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 are often called semi-slugs.
Ampullariidae, whose members are commonly known as apple snails, is a family of large freshwater snails that includes the mystery snail species. They are aquatic gastropod mollusks with a gill and an operculum. These snails simultaneously have a gill and a lung as functional respiratory structures, which are separated by a division of the mantle cavity. This adaptation allows these animals to be amphibious. Species in this family are considered gonochoristic, meaning that each individual organism is either male or female.
The operculum is a corneous or calcareous anatomical structure like a trapdoor that exists in many groups of sea snails and freshwater snails, and also in a few groups of land snails; the structure is found in some marine and freshwater gastropods, and in a minority of terrestrial gastropods, including the families Helicinidae, Cyclophoridae, Aciculidae, Maizaniidae, Pomatiidae, etc.
Cone snails, or cones, are highly venomous sea snails of the family Conidae.
Vittina natalensis, common name spotted nerite, is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.
A land snail is any of the numerous species of snail that live on land, as opposed to the sea snails and freshwater snails. Land snail is the common name for terrestrial gastropod mollusks that have shells. 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.
Jasus lalandii, the Cape rock lobster or West Coast rock lobster, is a species of spiny lobster found off the coast of Southern Africa. It is not known whom the specific epithet lalandii commemorates, although it may the French naturalist and taxonomer Pierre Antoine Delalande.
Freshwater snails are gastropod mollusks that 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.
Muricodrupa fenestrata is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Nucella dubia, common name the common dogwhelk, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Vaughtia babingtoni is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.
Vaughtia purpuroides is a species of sea snail, a marine gastropod mollusc in the family Muricidae, the murex snails or rock snails.
Oxystele sinensis, common name the pink-lipped topshell, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Calyptraea helicoidea is a species of sea snail, a marine gastropod mollusk in the family Calyptraeidae, the slipper snails or slipper limpets, cup-and-saucer snails, and Chinese hat snails.
Neverita didyma, common name the bladder moon snail or moon shell, is a species of predatory sea snail, a marine gastropod mollusc in the family Naticidae, the moon snails.
Ethalia bysma is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.
Conus royaikeni is a species of sea snail, a marine gastropod mollusc in the family Conidae, the cone snails, cone shells or cones.
Falsimargarita glaucophaos is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
Bruceina chenoderma is a species of sea snail, a marine gastropod mollusk, in the family Calliostomatidae within the superfamily Trochoidea, the top snails, turban snails and their allies.
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