Evening cymbiola [1] , or bat volute [1] ( Cymbiola vespertilio ), is a gastropod of the volut family.
| Tsimbiola evening |
 Clamshell |
| Scientific classification |
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| No rank : | Bilateral symmetrical |
| Subclass : | Price gastropods |
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| International scientific name |
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Cymbiola vespertilio ( Linnaeus , 1758 ) |
| Synonyms |
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- Cymbiola (Cymbiola) vespertilio (Linnaeus, 1758)
- Voluta lineolata KΓΌster, 1841
- Voluta pellisserpentis Lamarck, 1811
- Voluta serpentina Lamarck, 1811
- Voluta vespertilio Linnaeus, 1758 ( basionym )
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Sink 45-160 mm long; medium size, massive, oval with a low curl. The last revolution is very large, with a rounded or sharp shoulder. Along the shoulder line of each revolution of the shell, there are a number of low pointed tubercles. The mouth of the shell is oblong, white or cream inside. The siphon channel is wide. A thin yellow strip passes along the inner edge of the outer lip, which has a wave-shaped recess. The columellar lip is white in color, with four large teeth of an oblong shape, often with a yellowish or gray-golden callus. The overall color of the shell varies from beige and cream to pale livine and pinkish-brown, with a variety of stripes, zigzag lines and spots of brown or dark brown.
The coasts of the tropical part of the Indo-Pacific region: from Indo-Malaysia, Indonesia , the Philippines , Papua New Guinea to Australia [1] .
Mollusks are found at a depth of up to 35 m on sandy, silty or sandy-silty soils. Active at night. It is a predator hunting small bivalve mollusks [1] .