Renea moutonii singularis
| Renea moutonii singularis | |
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| Shell of Renea moutonii singularis (specimen at MNHN, Paris) | |
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| Species: | R. singularis
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| Binomial name | |
| Renea singularis | |
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| Renea moutonii singularis Pollonera, 1905
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Renea moutonii singularis is a subspecies of land snail with an operculum, a terrestrial gastropod mollusk in the family Aciculidae.[1] It was described by Pollonera in 1905. The common name is needle snail.[2]
Distribution
This subspecies is endemic to France. It has a very narrow distribution, being found only in the Alpes-Maritimes, in the Loup and Siagne valleys.[3] Because of its limited distribution and rarity within its range it is considered threatened. The IUCN red list of endangered species lists it as vulnerable.[1]
Description
These snails are between 3 and 4 mm long and 1.1 to 1.3 mm wide. Their elongated shells are light brown with fine ribbing (60-70 ribs with a penultimate whorl). The apertural margin in lateral view is oblique / and (-shaped, with an exaggerated sinulus, and a P-like opening at the suture in the last quarter of the last whorl. There is no cervical callus. The apertural margin can be thick.[3]
R. moutoni singularis is possibly the end of an evolutionary line that begins with an almost straight apertural margin (in lateral view) towards a much more oblique and protruded margin with the needle snail having the longest sinulus along the suture.[3]
References
- ^ a b c Bouchet, P.; Seddon, M.B. (1996). "Renea moutonii ssp. singularis". IUCN Red List of Threatened Species. 1996: e.T19430A8890560. doi:10.2305/IUCN.UK.1996.RLTS.T19430A8890560.en. Retrieved 12 January 2020.
- ^ Conchology Inc http://www.conchology.be/?t=68&u=824619&g=fd769883d258b1abcd889fd40a63f641&q=99b5128779de6c5043dc19891a988bcc retrieved 12 June 2015
- ^ a b c Goettingen University AnimalBase http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=2827 retrieved 12 June 2015
- Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017
External links
- Pollonera, C. (1905). Note malacologiche. II. Molluschi terrestri e fluviatili delle Isole d'Elba e Pianosa. Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino, 20 (517): 1-10, pl. 1. TorinoError: "Q5223899" is not a valid Wikidata entity ID.
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