Armadillidium nasatum
Armadillidium nasatum | |
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Armadillidium nasatum, in standard posture (above) and conglobated (below) | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Crustacea |
Class: | Malacostraca |
Superorder: | Peracarida |
Order: | Isopoda |
Suborder: | Oniscidea |
Family: | Armadillidiidae |
Genus: | Armadillidium |
Species: | A. nasatum
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Binomial name | |
Armadillidium nasatum Budde-Lund, 1833 [1]
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Subspecies | |
Five subspecies | |
Range (UK only)[2][3] | |
Synonyms [4] | |
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Armadillidium nasatum is a large, Western European-based species of woodlouse that has been introduced to North America, along with Armadillidium vulgare also found in other parts of Europe.
Description[]
Armadillidium nasatum can reach lengths of up to 21 millimetres.[2][5] Though similar in outwards appearance to Armadillidium vulgare in dark grey color, the main distinguishing feature is pale longitudinal stripes spanning from head to rear and rectangular-like protrusion towards the apex of the head. Like Armadillidium depressum, it does not form a complete ball when enrolled.[2] The tail has a rounded tip with incurved sides, as opposed to most genus Armadillidium species which have a flat tail.[5]
Distribution[]
Armadillidium nasatum occurs in patches in southern England, with concentrated areas in its range and sporadic occurrences in Ireland.[2] It lives in dryer areas than most woodlice, is synanthropic, and is frequently found in non-inhabited areas such as railway lines and industrial waste ground.[2] Like other woodlice, it is found under stones and wood.
Subspecies[]
There are five recognized subspecies in the species Armadillidium nasatum:[1]
- Colinge, 1989
- Verhoeff, 1930
- Budde-Lund, 1885
- Collinge, 1918
- Arcangeli, 1950
References[]
- ^ a b "Armadillidium nasatum Budde-Lund, 1885". Integrated Taxonomic Information System. Retrieved August 2, 2015.
- ^ a b c d e Armadillidium nasatum Budde-Lund, 1885
- ^ http://www.nhm.ac.uk/nature-online/life/other-invertebrates/walking-with-woodlice/results/old/armadillidium_nasatum.html
- ^ Helmut Schmalfuss (2003). "World catalog of terrestrial isopods (Isopoda: Oniscidea) — revised and updated version" (PDF). Stuttgarter Beiträge zur Naturkunde, Serie A. 654: 341 pp. Archived from the original (PDF) on 2009-02-24. Retrieved 2015-08-02.
- ^ a b Powerpoint Presentation - nasatum.pdf
External links[]
- Media related to Armadillidium nasatum at Wikimedia Commons
- Woodlice of Europe
- Crustaceans described in 1885
- Woodlice