# Androniscus dentiger

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Species of woodlouse

Androniscus dentiger Scientific classification Kingdom: Animalia Phylum: Arthropoda Clade: Pancrustacea Class: Malacostraca Order: Isopoda Suborder: Oniscidea Family: Trichoniscidae Genus: Androniscus Species: A. dentiger Binomial name Androniscus dentiger Verhoeff, 1908 [1] Synonyms [2] Androniscus africanus Androniscus alpinus Androniscus carli Androniscus weberi Androniscus wolfi Itea dentiger Stenasellus hazeltoni Trichoniscus dentiger

***Androniscus dentiger***, the **rosy woodlouse** or **pink woodlouse**, is a [species](/source/Species) of [woodlouse](/source/Woodlouse) found from the [British Isles](/source/British_Isles) to [North Africa](/source/North_Africa).[3]

## Description

*Androniscus dentiger* is a small woodlouse, at only 6 mm (¼ in) long, and is characteristically pink or orange in colour, with a yellow stripe along the midline of the dorsal surface,[4] which divides in two towards the animal's tail. It has large eyes for its size and a granular [exoskeleton](/source/Exoskeleton).[5]

## Ecology

In the [British Isles](/source/British_Isles), *A. dentiger* is found in a wide variety of [habitats](/source/Habitat), including coastal areas, [gardens](/source/Garden), old [quarries](/source/Quarry)[4] and [caves](/source/Cave).[6] It lives where there is a significant amount of [lime](/source/Lime_(material)) available, and is reported to show a preference for [Anglican](/source/Anglicanism) [churchyards](/source/Churchyard) over [Catholic](/source/Roman_Catholic_Church) ones because the older, [Protestant churches](/source/Protestantism) used ox-blood [mortar](/source/Mortar_(masonry)).[7]

In the south of its range, *A. dentiger* is primarily [troglobitic](/source/Troglobite), with populations in different [cave systems](/source/Cave_system) being [genetically isolated](/source/Geographical_isolation) by the lack of [migration](https://en.wiktionary.org/wiki/migration) between caves.[8] Animals like *A. dentiger* which prefer to live in caves, but are not restricted to the cave environment may be termed *troglophilic*.[9]

In [North America](/source/North_America), *A. dentiger* is only known to occur in [greenhouses](/source/Greenhouse).[2]

## Subspecies

According to some authors, *A. dentiger* may be considered a [complex](/source/Species_complex) of [sibling species](/source/Sibling_species) or [cryptic species](/source/Cryptic_species) .[3] Six [subspecies](/source/Subspecies) are recognised:[1]

- *Androniscus dentiger africanus* Arcangeli, 1939

- *Androniscus dentiger caecus* Brian, 1938

- *Androniscus dentiger calcivagus* Verhoeff, 1908

- *Androniscus dentiger croaticus* Strouhal, 1939

- *Androniscus dentiger dentiger* Verhoeff, 1908

- *Androniscus dentiger ligulifer* Verhoeff, 1908

## See also

- [List of woodlice of the British Isles](/source/List_of_woodlice_of_the_British_Isles)

## References

1. ^ [***a***](#cite_ref-ITIS_1-0) [***b***](#cite_ref-ITIS_1-1) ["*Androniscus dentiger* Verhoeff, 1908"](https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=594216). [Integrated Taxonomic Information System](/source/Integrated_Taxonomic_Information_System). Retrieved November 7, 2010.

1. ^ [***a***](#cite_ref-Schmalfuss_2-0) [***b***](#cite_ref-Schmalfuss_2-1) Helmut Schmalfuss (2003). ["World catalog of terrestrial isopods (Isopoda: Oniscidea) — revised and updated version"](https://wayback.archive-it.org/all/20090224212510/http://www.oniscidea-catalog.naturkundemuseum-bw.de/Cat_terr_isop.pdf) (PDF). *Stuttgarter Beiträge zur Naturkunde, Serie A*. **654**: 341 pp. Archived from [the original](http://www.oniscidea-catalog.naturkundemuseum-bw.de/Cat_terr_isop.pdf) (PDF) on 2009-02-24. Retrieved 2009-02-19.

1. ^ [***a***](#cite_ref-Gentile_3-0) [***b***](#cite_ref-Gentile_3-1) Gabriele Gentile; Giuliana Allegrucci (1997). ["Geographic variation and genetic relationships in populations of the *Androniscus dentiger* complex from Central Italy (Isopoda, Oniscidea, Trichoniscidae)"](https://doi.org/10.5038%2F1827-806x.26.1.5). *[International Journal of Speleology](/source/International_Journal_of_Speleology)*. **26** (1–2): 47–61. [doi](/source/Doi_(identifier)):[10.5038/1827-806x.26.1.5](https://doi.org/10.5038%2F1827-806x.26.1.5).

1. ^ [***a***](#cite_ref-NHM_4-0) [***b***](#cite_ref-NHM_4-1) ["Woodlouse wizard — less common species"](http://www.nhm.ac.uk/nature-online/life/other-invertebrates/walking-with-woodlice/species5b.html). [Natural History Museum](/source/Natural_History_Museum%2C_London). Retrieved February 19, 2009.

1. **[^](#cite_ref-Orange_5-0)** Angelo Gross. ["*Androniscus dentiger* — le cloporte rosâtre"](http://pagesperso-orange.fr/zenza/cloportes/Adentiger.html) (in French).

1. **[^](#cite_ref-6)** ["Life in the cave — Crustacea"](http://www.cambriancavingcouncil.org.uk/cavelife/wales/crustacea.html). Cambrian Caving Council. Retrieved November 7, 2010.

1. **[^](#cite_ref-7)** Joe Kennedy (July 5, 2008). ["Meeting Dublin's wildest residents: review of *Wild Dublin* by Eanna ni Lamhna"](https://web.archive.org/web/20121018045836/https://www.independent.ie/entertainment/books/meeting-dublins-wildest-residents-1428177.html). [Irish Independent](/source/Irish_Independent). Archived from [the original](http://www.independent.ie/entertainment/books/meeting-dublins-wildest-residents-1428177.html) on 2012-10-18.

1. **[^](#cite_ref-8)** Ivan H. Tuf; Karel Tajovský; Jan Mikula; Vratislav Laška; Roman Mlejnek. ["Terrestrial isopods (Isopoda: Oniscidea) in and near the Zbrašov Aragonit Caves (Czech Republic)"](https://web.archive.org/web/20110718185316/http://ekologie.upol.cz/ad/tuf/pdf/papers/Tuf+Tajovsky+Mikula+Laska+Mlejnek2008.pdf) (PDF). *Proceedings of the International Symposium of Terrestrial Isopod Biology – ISTIB-07*. I. Biodiversity & Systematics: 33–36. Archived from [the original](http://ekologie.upol.cz/ad/tuf/pdf/papers/Tuf+Tajovsky+Mikula+Laska+Mlejnek2008.pdf) (PDF) on 2011-07-18. Retrieved 2009-02-19.

1. **[^](#cite_ref-9)** Lee Knight (2007). ["Cave Life in Britain"](https://web.archive.org/web/20110717122716/http://www.fba.org.uk/recorders/publications_resources/cavelife/contentParagraph/00/document/CaveLife_Website.pdf) (PDF). [Freshwater Biological Association](/source/Freshwater_Biological_Association). Archived from [the original](http://www.fba.org.uk/recorders/publications_resources/cavelife/contentParagraph/00/document/CaveLife_Website.pdf) (PDF) on 2011-07-17.

Taxon identifiers Androniscus dentiger Wikidata: Q1646499 ADW: Androniscus_dentiger BioLib: 85271 CoL: 66NT2 EoL: 325100 EUNIS: 243861 Fauna Europaea: 218876 Fauna Europaea (new): 7f9351f3-4506-451d-8115-0b6332f5d209 GBIF: 2208095 iNaturalist: 130167 IRMNG: 11210715 ITIS: 594216 NBN: NBNSYS0000008544 NCBI: 1091206 Observation.org: 26503 Plazi: ABD0D9BF-71A9-6238-4F4F-DEBDCF0E842A SeaLifeBase: 15588 WoRMS: 258615

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Adapted from the Wikipedia article [Androniscus dentiger](https://en.wikipedia.org/wiki/Androniscus_dentiger) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Androniscus_dentiger?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.