Cypraea mauritiana
Encyclopedia
Mauritia mauritiana, common name
the Humpback Cowry or the Chocolate Cowry or the Mourning Cowry or the Mauritius Cowry, is a species
of tropical sea snail
, a cowry
, a marine
gastropod mollusc in the family
Cypraeidae
, the cowries.
There is one subspecies : Mauritia mauritiana mauritiana (Linnaeus)
This is an Indo-Pacific
species (see range map) occurring in the Indian Ocean
along South-East Africa
and in the western Pacific Ocean
(western and northern Australia
, Malaysia, Philippines
and Hawaii
).
cliffs or breakwaters. Mauritia mauritiana lives in tropical low intertidal water, usually under rocks or in rocky crevices at a minimum depth of about 2 metres (6.6 ft), but can be found up to 50 metres (164 ft).
Common name
A common name of a taxon or organism is a name in general use within a community; it is often contrasted with the scientific name for the same organism...
the Humpback Cowry or the Chocolate Cowry or the Mourning Cowry or the Mauritius Cowry, is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
of tropical sea snail
Snail
Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...
, a cowry
Cowry
Cowry, also sometimes spelled cowrie, plural cowries, is the common name for a group of small to large sea snails, marine gastropod molluscs in the family Cypraeidae, the cowries...
, a marine
Marine (ocean)
Marine is an umbrella term. As an adjective it is usually applicable to things relating to the sea or ocean, such as marine biology, marine ecology and marine geology...
gastropod mollusc in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Cypraeidae
Cypraeidae
Cypraeidae, common name the cowries , is a taxonomic family of small to large sea snails. These are marine gastropod mollusks in the superfamily Cypraeoidea, the cowries and cowry allies.-Shell description:...
, the cowries.
There is one subspecies : Mauritia mauritiana mauritiana (Linnaeus)
Description
The shells of these quite common cowries reach on average 65–80 mm (2.6–3.1 ) of length, with a minimum size of 43 millimetres (1.7 in) and a maximum size of 130 millimetres (5.1 in). The dorsum surface of these smooth and shiny shells is generally dark brown, with distinct large yellowish or amber dots. The edges of the dorsum and the base are completely dark brown. The aperture is long and narrow, with several dark brown teeth and clear spacing. In the living cowries the mantle is completely black, without sensorial papillae.| | |
Distribution
Indo-Pacific
The Indo-Pacific is a biogeographic region of the Earth's seas, comprising the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the seas connecting the two in the general area of Indonesia...
species (see range map) occurring in the Indian Ocean
Indian Ocean
The Indian Ocean is the third largest of the world's oceanic divisions, covering approximately 20% of the water on the Earth's surface. It is bounded on the north by the Indian Subcontinent and Arabian Peninsula ; on the west by eastern Africa; on the east by Indochina, the Sunda Islands, and...
along South-East Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
and in the western Pacific Ocean
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...
(western and northern Australia
Australia
Australia , officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the mainland of the Australian continent, the island of Tasmania, and numerous smaller islands in the Indian and Pacific Oceans. It is the world's sixth-largest country by total area...
, Malaysia, Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...
and Hawaii
Hawaii
Hawaii is the newest of the 50 U.S. states , and is the only U.S. state made up entirely of islands. It is the northernmost island group in Polynesia, occupying most of an archipelago in the central Pacific Ocean, southwest of the continental United States, southeast of Japan, and northeast of...
).
Habitat
This species of cowry is normally restricted to exposed habitats such as wave-washed basaltBasalt
Basalt is a common extrusive volcanic rock. It is usually grey to black and fine-grained due to rapid cooling of lava at the surface of a planet. It may be porphyritic containing larger crystals in a fine matrix, or vesicular, or frothy scoria. Unweathered basalt is black or grey...
cliffs or breakwaters. Mauritia mauritiana lives in tropical low intertidal water, usually under rocks or in rocky crevices at a minimum depth of about 2 metres (6.6 ft), but can be found up to 50 metres (164 ft).