Naria erosa: Difference between revisions
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At night in the living cowries, the extremely papillose brownish mantle usually covers the shell completely, camouflaging the animal. |
At night in the living cowries, the extremely papillose brownish mantle usually covers the shell completely, camouflaging the animal. |
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[[File:Cypraea-erosa.jpg|thumb|''Erosaria erosa'', dorsal view]] |
[[File:Cypraea-erosa.jpg|thumb|''Erosaria erosa'', dorsal view]] |
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[[File:Cypraeidae - Erosaria erosa chlorizans f. purissima - Australia-1.JPG|thumb|''Erosaria erosa chlorizans, anterior end towards the right - Australia]] |
[[File:Cypraeidae - Erosaria erosa chlorizans f. purissima - Australia-1.JPG|thumb|''Erosaria erosa chlorizans, anterior end towards the right - Australia]] |
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[[File:Cypraeidae - Erosaria erosa chlorizans f. purissima - Australia.JPG|thumb|''Erosaria erosa chlorizans'' side view, anterior end towards the right]] |
[[File:Cypraeidae - Erosaria erosa chlorizans f. purissima - Australia.JPG|thumb|''Erosaria erosa chlorizans'' side view, anterior end towards the right]] |
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==Distribution== |
==Distribution== |
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Revision as of 21:54, 30 November 2012
| Erosaria erosa | |
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| Erosaria erosa, anterior end is to the left | |
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| Five views of a shell of Erosaria erosa | |
| Scientific classification | |
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| Species: | E. erosa
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| Binomial name | |
| Erosaria erosa | |
| Synonyms[1] | |
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Cypraea erosa Linnaeus, 1758 (basionym) | |
Erosaria erosa, common name the gnawed or eroded cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.[1]
Description
The shell of these quite common cowries reaches on average 32–38 millimetres (1.3–1.5 in) in length, with a maximum size of 75 millimetres (3.0 in) and a minimum adult size of 15 millimetres (0.59 in). The dorsum is yellow-ocher or pale brown, with many small white spots. The extremities of the shell show dark brown spots. A dark brown area which is roughly rectangular is present on each side close to the edge. The base is white to light beige, with thin transverse stripes.
At night in the living cowries, the extremely papillose brownish mantle usually covers the shell completely, camouflaging the animal.
Distribution
This species and its subspecies are distributed in the Indian Ocean along Aldabra, Chagos, the Comores, the East Coast of South Africa, Kenya, Madagascar, the Mascarene Basin, Mauritius, Mozambique, Réunion, the Seychelles, Somalia and Tanzania, as well in the Western Pacific Ocean (Malaysia, Australia, Philippines, Polynesia and Hawaii).
Habitat
These cowries live in warm tropical waters, on shallow intertidal reefs or in lagoons at about 2–10 metres (6 ft 7 in – 32 ft 10 in) of depth. Like most other cowries, during the day they usually hide under rocks slabs with the mantle drawn into the shell. They feed only at dawn or dusk.
Subspecies
There are three subspecies recognized :[1]
- Erosaria erosa erosa, (Linnaeus, 1758)
- Erosaria erosa fuscocincta, Bozzetti, 2008
- Erosaria erosa chlorizans, (Melvill, 1888)
References
- ^ a b c Erosaria erosa. WoRMS (2010). Erosaria erosa. In: Bouchet, P.; Gofas, S.; Rosenberg, G. (2010) World Marine Mollusca database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=216852 on 13 October 2010 .
External links
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