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Careoradula perelegans

Species of gastropod From Wikipedia, the free encyclopedia

Careoradula perelegans
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Careoradula perelegans is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Streptaxidae.[2][4]

Quick facts Conservation status, Scientific classification ...

Careoradula perelegans is the only species in the genus Careoradula.[2]

The generic name Careoradula consist of Latin word "careo", that means "lacking" and the word radula.[2]

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Distribution

Careoradula perelegans is endemic to the Seychelles.[2][4]

Description

The shape of the shell is discoidal.[2] The shell has 6-8 whorls.[2] there are regular ribs on the shell.[2] The umbilicus is open.[2]

The width of the shell is 4.4-6.1 mm.[2] The height of the shell is 1.9-3.1 mm.[2]

The body color is pale yellow.[2]

Digestive system: Careoradula perelegans is unique among other streptaxids, because it has no radula, no odontophore and no retractor muscles associated with these structures.[2][5] It is the first known terrestrial mollusc and first pulmonate gastropod without radula.[5] Instead of this, the Careoradula perelegans has strong muscular ridges between mouth and oesophagus.[5]

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Ecology

Careoradula perelegans feeds on carrion.[5] It has been recorded to feed on dead snail Subulina octona.[5] It evert an extensive rostrum,[5] that is available in all carnivorous gastropods on the anterior part of the oesophagus,[5] and it uses only muscular peristaltics instead of rasping by radula.[5]

References

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