Luria isabella
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Luria isabella, common names Isabel's cowry, Isabella cowry or fawn-coloured cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.[1]
Description
The shells of these very common cowries reach on average Script error: No such module "convert". of length, with a minimum size of Script error: No such module "convert". and a maximum size of Script error: No such module "convert".. The basic color of these cylindrical-shaped shells is light beige or fawn or pale reddish-brown, the dorsum surface is crossed by thin discontinuous longitudinal markings and the extremities show orange-red terminal spots. The base is mainly white and the long and narrow aperture has several short teeth. In the living cowries the well developed mantle is black matt and almost velvety, with external short antennae.
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Distribution
This species lives in the Red Sea, along the East African coast, the Mascarene Basin and in the Indo-West Pacific Ocean (Malaysia, Indonesia, Australia, Melanesia, Philippines, Southern Japan, Taiwan) up to Hawaii.
Fossils have been found in Holocene strata on the Eniwetok Atol, Marshall Islands and in Pliocene or Pleistocene strata on Guam.
Habitat
Living cowries of this species can be encountered in a wide range of habitats, in shallow and in intertidal waters up to about Script error: No such module "convert". of depth. During the day they usually stay under rocks and stones or in small holes or coral caves. At dawn or dusk they start feeding on sponges, algae or coral polyps.
Subspecies
There have been a great many subspecies named, but most names are very dubious. However the following are generally accepted as valid names:
- Luria isabella isabella (Linnaeus, 1758)
- Luria isabella controversa (Gray, 1824) (sometimes accepted as Luria controversa)
- Luria isabella gilvella Lorenz, 1999
- Luria isabella lekalekana Ladd, 1934
- Luria isabella mexicana Stearns, 1893
References
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- ↑ WoRMS : Luria isabella; accessed : 17 October 2010
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- Verdcourt, B. (1954). The cowries of the East African Coast (Kenya, Tanganyika, Zanzibar and Pemba). Journal of the East Africa Natural History Society 22(4) 96: 129-144, 17 pls.
External links
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