| Amalda australis | |
|---|---|
 | |
| A shell of Amalda australis | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Caenogastropoda |
| Order: | Neogastropoda |
| Family: | Ancillariidae |
| Genus: | Amalda |
| Species: | A. australis |
| Binomial name | |
| Amalda australis (Sowerby, 1830) | |
| Synonyms | |
| |
Amalda australis, common name the southern olive, is a medium-sized sea snail, a gastropod mollusc of the family Ancillariidae. [1]
The length of the shell attains 52 mm, its diameter 23 mm.
The shell is elongate and fusiform, with a smooth, glossy surface. The spire is relatively short compared to the large body whorl, and the overall shape is sleek and streamlined, allowing the snail to easily burrow into sand. The coloration of the shell varies from creamy white to light brown, often with subtle darker bands or streaks. The aperture is long and narrow, with a thin outer lip. The inner lip and columella are typically coated with a thin callus. [2]
These predatory snails live in the intertidal sand, [3] an environment that lends itself to high probability of fossilization. [4] Amalda australis fossils date back to the Pliocene and reveal morphological stasis. [5] [6]
This marine species is endemic to New Zealand. [3] and occurs off North Island and northern part of South Island down to Banks Peninsula. [7]
Amalda is a genus of medium-sized sea snails, a marine gastropod mollusc in the family Ancillariidae, the olives and allies.
Amalda depressa, common name the depressed ancilla, is a species of a small sea snail, a marine gastropod mollusc in the family Ancillariidae.
Amalda mucronata is a species of medium-sized sea snail, a marine gastropod mollusc in the family Ancillariidae. These snails live in the sandy subtidal near-shore environment where they eat bivalves. Fossil material of this species provides evidence of morphological stasis over 5 million years
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.
Diodora is a genus of small to medium-sized keyhole limpet in the family Fissurellidae.
Olivella, common name the dwarf olives, is a genus of small predatory sea snails, marine gastropod molluscs in the subfamily Olivellinae of the family Olividae, the olives. Olivella is the type genus of the family.
Vexillum amandum, common name: the Amanda mitre or the beloved mitre, is a species of small sea snail, marine gastropod mollusk in the family Costellariidae, the ribbed miters.
Volvarina fauna, common name the alabaster marginella. is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.
Quasimitra lacunosa is a species of sea snail, a marine gastropod mollusk in the family Mitridae, the miters or miter snails.
Nebularia pellisserpentis is a species of sea snail, a marine gastropod mollusc in the family Mitridae, the miters or miter snails.
Imbricaria annulata, common name the ringed mitre, is a species of sea snail, a marine gastropod mollusk in the family Mitridae, the miters or miter snails.
Amalda angustata is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
Amalda bellonarum is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
Amalda roscoae is a species of sea snail, a marine gastropod mollusk in the family Ancillariidae.
Amalda trachyzonus 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.
Incatella cingulata is a species of sea snail, a marine gastropod mollusk in the family Turritellidae.
Lampasopsis rhodostoma, common name the Wine-mouth frog shell, is a species of sea snail, a marine gastropod mollusk in the family Bursidae, the frog shells.
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.
Paramontana rufozonata, common name red-zoned turrid, is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.
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