Biology:Polybius pusillus
| Polybius pusillus | |
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Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Polybiidae |
| Genus: | Polybius |
| Species: | P. pusillus
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| Binomial name | |
| Polybius pusillus (Leach, 1815)
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| Synonyms[1] | |
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Polybius pusillus, common name dwarf swimming crab,[2] is a species of crab in the Portunidae family.[3][1]
Description
Polybius pusillus is a small, colourful species with a broad, suboval carapace having a maximum width of 25 mm (1.0 in). However, most specimens are usually less than 20 mm (0.8 in).[3][4] This species occurs in a wide range of colours.[3] The front has three sharpened tusks, directed forward.[2]
Distribution
Polybius pusillus occurs from North-West Africa, to Lofoten, Norway[3][4] including the North Sea.[2] It is found around the shores of: England, in such places as Northumberland, Yorkshire, The Wash, Thames, the eastern English Channel, Isle of Wight, Portland, Plymouth, the Scilly Isles, the Bristol Channel, Liverpool Bay; Scotland - Shetland, Orkney, Firth of Forth, Argyll and Clyde, The Minch; Ireland, occurring in and around Dublin, Belfast, County Mayo, Galway Bay, Fastnet Rock, County Cork; and elsewhere in the British Isles including the Channel Islands, Anglesey and the Isle of Man.[5]
Habitat
Specimens range intertidally up to 100 metres,[4] dwelling on sandy to stony bottoms,[3][5] but prefer gravel or stony substrates.
References
- ↑ 1.0 1.1 De Grave, Sammy (6 May 2024). "Polybius pusillus (Leach, 1816)". WoRMS. World Register of Marine Species. http://www.marinespecies.org/aphia.php?p=taxdetails&id=151200.
- ↑ 2.0 2.1 2.2 "Marine Species: Liocarcinus pusillus". Skaphandrus.com. Archived from the original on 2011-07-16. https://web.archive.org/web/20110716081115/http://www.skaphandrus.com/marine_species/species/Liocarcinus_pusillus. Retrieved 2010-08-05.
- ↑ 3.0 3.1 3.2 3.3 3.4 "Liocarcinus pusillus". Seawater.no. March 20, 2009. Archived from the original on July 18, 2009. https://web.archive.org/web/20090718225851/http://www.seawater.no/fauna/Leddyr/pusillus.htm. Retrieved August 5, 2010.
- ↑ 4.0 4.1 4.2 "Liten svømmekrabbe - Liocarcinus pusillus" (in Norwegian). Marinbi.com. http://www.marinbi.com/arthropoda/l-pusill.htm. Retrieved August 5, 2010.
- ↑ 5.0 5.1 Mario de Kluiver; Sarita Ingualso. "Liocarcinus pusillus". Macrobenthos of the North Sea - Crustacea. Marine Species Identification Portal. http://species-identification.org/species.php?species_group=crustacea&id=226. Retrieved August 5, 2010.
Wikidata ☰ Q3022018 entry
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