| Amalda | |
|---|---|
 | |
| A shell of Amalda australis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Superfamily: | Olivoidea |
| Family: | Ancillariidae |
| Genus: | Amalda H. Adams & A. Adams, 1853 [1] |
| Type species | |
| Amalda tankervillii Swainson, W.A., 1825 | |
| Species | |
See text | |
| Synonyms [2] | |
| |
Amalda is a genus of medium-sized sea snails, a marine gastropod mollusc in the family Ancillariidae, the olives and allies. [2]
The thin shell is not umbilicated. The spire is elongated with the suture enamelled. The primary spire callus covers most of the spire, including at least part of the protoconch, leaving in most cases only the first protoconch whorl exposed. [3] The inner lip has the callus moderate, defined. The outer lip is simple. [4]
These snails usually live in the sand in fairly shallow water in tropical and temperate regions of the world with a particularly rich fauna in Australia and the Indo-West Pacific. Most species are predators of marine bivalves. [5] [6] [7]
In general, both shallow and deep-water species of Amalda tend to have relatively narrow distribution ranges within the Indo-Pacific, where local faunas are often dominated by narrow endemics, particularly in South Africa and, to a lesser extent, Australia. While some species exhibit broader distributions—such as A. hinomotoensis, found from Japan to Taiwan, and A. mamillata, present in regions including Indonesia, the Strait of Malacca, Vietnam, and the China Seas (Gratecap 2016b)—such broad distributions should be interpreted with caution. [3] [8]
Species within the genus Amalda include: [9] [10]
Olive snails, also known as olive shells and olives, scientific name Olividae, are a taxonomic family of medium to large predatory sea snails with smooth, shiny, elongated oval-shaped shells.
Mitridae, known as mitres or mitre shells, are a taxonomic family of sea snails, widely distributed marine gastropod molluscs in the clade Mitroidea.
Mitra is a large genus of medium to large predatory sea snails, marine gastropod mollusks in the family Mitridae, the miter shells or mitre snails.
Emarginula is a genus of small keyhole limpets, marine gastropod molluscs in the family Fissurellidae.
Polinices is a genus of predatory sea snails, marine gastropod molluscs in the subfamily Polinicinae of the family Naticidae, commonly known as moon snails.
Fasciolariidae is a family of small to large sea snails, marine gastropod mollusks in the superfamily Buccinoidea. Species in Fasciolariidae are commonly known as tulip snails and spindle snails.
Scaphella is a genus of large sea snails, marine gastropod mollusks in the family Volutidae, the volutes.
Clavatulidae is a taxonomic family of sea snails, marine gastropod mollusks in the superfamily Conoidea. The family is not well differentiated morphologically.
Chicoreus is a genus of medium- to large-sized predatory sea snails. These are carnivorous marine gastropod molluscs in the family Muricidae, the murexes or rock snails.
Imbricaria is a genus of sea snails, marine gastropod mollusk in the family Mitridae, the miters or miter snails.
Vexillum is a genus of small to medium-sized sea snails, marine gastropod molluscs in the family Costellariidae.
Swainsonia is a genus of sea snails, marine gastropod molluscs in the subfamily Imbricariinae of the family Mitridae.
Athleta is a genus of sea snails, marine gastropod mollusks in the family Volutidae.
Amalda tankervillii is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
Ancilla, common name the ancillas, is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.
Eburna is a genus of sea snails, marine gastropod mollusks in the family Ancillariidae.
Clavus is a genus of small sea snails, marine gastropod mollusks in the family Drilliidae.
Nebularia is a genus of predatory sea snails, marine gastropod mollusks in the subfamily Cylindromitrinae within the family of Mitridae. This name was originally proposed as a subgenus of the genus Mitra. The type species of this genus is Mitra contractaSwainson, 1820.
The Ancillariidae is a taxonomic family of sea snails, marine gastropod molluscs in the superfamily Olivoidea. They are gastropods, which belong to the larger group of mollusks. This family is part of the superfamily Cypraeoidea, which includes cowries, a well-known group of sea snails.
Mitrinae, known as mitre shells, are a taxonomic subfamily of sea snails, widely distributed marine gastropod molluscs in the family Mitridae.
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