Munditia manawatawhia

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Munditia manawatawhia
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):clade Vetigastropoda
Superfamily: Trochoidea
Family: Liotiidae
Subfamily: Liotiinae
Genus: Munditia
Species:M. manawatawhia
Binomial name
Munditia manawatawhia
Powell, 1937

Munditia manawatawhia is a minute sea snail, a marine gastropod mollusc in the family Liotiidae.

Sea snail common name for snails that normally live in saltwater

Sea snail is a common name for snails that normally live in salt water, in other words marine gastropods. The taxonomic class Gastropoda also includes snails that live in other habitats, such as land snails and freshwater snails. Many species of sea snails are edible and exploited as food sources by humans.

Family is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy; it is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as being the "walnut family".

Liotiidae family of molluscs

Liotiidae is a family of small sea snails, marine gastropod mollusks in the clade Vetigastropoda.

Contents

Description

The height of the smooth shell attains 0.8 mm, its diameter 1.5 mm. This very small, white shell has a discoidal shape and wide umbilicus. It contains 2½ rapidly increasing whorls. The aperture is circular. [1]

Umbilicus (mollusc)

The umbilicus of a shell is the axially aligned, hollow cone-shaped space within the whorls of a coiled mollusc shell. The term umbilicus is often used in descriptions of gastropod shells, i.e. it is a feature present on the ventral side of many snail shells, including some species of sea snails, land snails, and freshwater snails.

Whorl (mollusc)

A whorl is a single, complete 360° revolution or turn in the spiral growth of a mollusc shell. A spiral configuration of the shell is found in of numerous gastropods, but it is also found in shelled cephalopods including Nautilus, Spirula and the large extinct subclass of cephalopods known as the ammonites.

Aperture (mollusc) The main opening of the shell, where the head-foot part of the body of the animal emerges

The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal emerges for locomotion, feeding, etc.

Distribution

This marine species is endemic to New Zealand. It is known from the Three Kings Islands, New Zealand. [2]

Three Kings Islands 13 uninhabited islands about 55 kilometres (34 mi) northwest of Cape Reinga, New Zealand

The Three Kings Islands, called Manawatāwhi by Māori, are a group of 13 uninhabited islands about 55 kilometres (34 mi) northwest of Cape Reinga, New Zealand, where the South Pacific Ocean and Tasman Sea converge. They measure about 4.86 km² in area. The islands are situated on a submarine plateau, the Three Kings Bank, and are separated from the New Zealand mainland by an 8 km wide, 200 to 300 m deep submarine trough. Therefore, despite relative proximity to the mainland, the islands are listed with the New Zealand Outlying Islands. The islands are an immediate part of New Zealand, but not part of any region or district, but instead Area Outside Territorial Authority, like all the other outlying islands except the Solander Islands.

New Zealand Country in Oceania

New Zealand is a sovereign island country in the southwestern Pacific Ocean. The country geographically comprises two main landmasses—the North Island, and the South Island —and around 600 smaller islands. New Zealand is situated some 2,000 kilometres (1,200 mi) east of Australia across the Tasman Sea and roughly 1,000 kilometres (600 mi) south of the Pacific island areas of New Caledonia, Fiji, and Tonga. Because of its remoteness, it was one of the last lands to be settled by humans. During its long period of isolation, New Zealand developed a distinct biodiversity of animal, fungal, and plant life. The country's varied topography and its sharp mountain peaks, such as the Southern Alps, owe much to the tectonic uplift of land and volcanic eruptions. New Zealand's capital city is Wellington, while its most populous city is Auckland.

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References

  1. ↑ A.W.B. Powell, The Molluscan Fauna of Northern New Zealand; Discovery reports v. 15 (1937)
  2. ↑ Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone - Gastropoda
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