| Ranellidae | |
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| Ranella australasia | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Littorinimorpha |
| Superfamily: | Tonnoidea |
| Family: | Ranellidae Gray, 1854 |
| Genera | |
See text | |
| Synonyms [1] | |
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The Ranellidae, common name the triton shells or tritons, are a taxonomic family of small to very large predatory sea snails, marine gastropod mollusks in the order Littorinimorpha. [1]
The Tritons are principally equatorial in their geographical distribution, and belong more especially to the Asiatic fauna. Those with the siphonal canal very much produced are obtained from deep water. The cancellated forms are from sand, in deep water; and those covered with an epidermis are chiefly from sandy mud, in from six to thirty fathoms. [2]
According to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005, the family Ranellidae consisted of two subfamilies:
The Cymatiinae now form a separate family: Cymatiidae.
The family Ranellidae contains the following genera: [1]
Littorinimorpha is a large order of snails, gastropods, consisting primarily of sea snails, but also including some freshwater snails and land snails.
Charonia is a genus of very large sea snail, commonly known as Triton's trumpet or Triton snail. They are marine gastropod mollusks in the monotypic family Charoniidae. They are one of the few natural predators of the crown-of-thorns starfish.
The Tonnidae are a family of medium-sized to very large sea snails, known as the tun shells. These are marine gastropod molluscs in the clade Littorinimorpha. The name tun refers to the snails' shell shape, which resembles wine casks known as "tuns". While thin, the shells are also strong and lack opercula. They are found in all tropical seas, where they inhabit sandy areas. During the day, they bury themselves in the substrate, emerging at night to feed on echinoderms, crustaceans, and bivalves. Some larger species also capture fish, using their expandable probosces to swallow them whole. Females lay rows of eggs that become free-swimming larvae for several months before settling to the bottom.
The Buccinidae are a very large and diverse taxonomic family of large sea snails, often known as whelks or true whelks.
Calliostomatidae is a family of sea snails within the superfamily Trochoidea and the clade Vetigastropoda.
Fissurellidae, common name the keyhole limpets and slit limpets, is a taxonomic family of small to medium-sized limpet-like sea snails, marine gastropod molluscs in the clade Vetigastropoda.
The Bursidae, common name "frog snails" or "frog shells", are a small taxonomic family of large sea snails, marine gastropod predatory snails in the clade Littorinimorpha.
Ranella is a genus of large warm-water and tropical sea snails, marine gastropod molluscs in the family Ranellidae, the tritons.
The Nassariidae, Nassa mud snails (US), or dog whelks (UK) are a taxonomic family of small to medium-sized sea snails, marine gastropod mollusks in the clade Neogastropoda.
Stomatellinae is a subfamily of small sea snails with a brilliantly nacreous interior of the shell, marine gastropod mollusks in the family Trochidae, the top snails.
The Capulidae, the cap snails or cap shells, are a taxonomic family of limpet-like sea snails, marine gastropod molluscs in the clade Littorinimorpha. Capulidae is the only family in the superfamily Capuloidea. According to taxonomy of the Gastropoda by Bouchet & Rocroi (2005) the family Capulidae has no subfamilies.
The Columbellidae, the dove snails or dove shells, are a family of minute to small sea snails, marine gastropod mollusks in the order Neogastropoda.
Cancellariidae, common name the nutmeg snails or nutmeg shells, are a family of small to medium-large sea snails, marine gastropod mollusks in the clade Neogastropoda. Some of the shells of the species in this family resemble a nutmeg seed.
Cylichnidae, common name the "chalice bubble snails" or "canoe bubble snails" is a family of sea snails or bubble snails, marine gastropod mollusks in the superfamily Cylichnoidea.
The Tonnoidea are a superfamily of sea snails, marine gastropod molluscs in the order Littorinimorpha. This superfamily includes many very large species.
The Personidae are a family of sea snails, marine gastropod molluscs in the order Littorinimorpha.
Sassia is a genus of sea snails, marine gastropod molluscs in the family Cymatiidae.
Linatella caudata, common name : the Girdled triton or Poulsen's Triton, is a species of predatory sea snail, a marine gastropod mollusk in the family Cymatiidae.
Gyrineum is a genus of predatory sea snails, marine gastropod mollusks in the family Cymatiidae.
The subfamily Emarginulinae, common name keyhole limpets and slit limpets, is a taxonomic subfamily of limpet-like sea snails, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.
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