Liocarcinus navigator explained

Liocarcinus navigator is a species of crab in the family Portunidae.^[1]

Distribution

This species is found chiefly around the British Isles; its range covers the north-east Atlantic Ocean, including the North Sea as far north as Trøndelag in Norway, and as far south as Mauritania, and it also occurs in the Mediterranean Sea.^[2]

Description

Liocarcinus navigator has a dark brown carapace up to approximately wide,^[3] with lighter pereiopods.^[4] The frontal margin of the carapace, between the eyes, has a fringe of hair but no spines.^{[3] [4]}

Subspecies

Two subspecies are recognised:

• Liocarcinus navigator rondeletii (Risso, 1816)
• Liocarcinus navigator navigator (Herbst, 1794)

Further reading

• Simon Jennings . John Lancaster . Andrew Woolmer . John Cotter . 1999 . Distribution, diversity and abundance of epibenthic fauna in the North Sea . . 79 . 3 . 385–399 . 10.1017/s0025315498000502.

Notes and References

1. . 2008 . 17 . 1–286 . Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world . Peter K. L. Ng . Danièle Guinot . Peter J. F. Davie . amp . dead . https://web.archive.org/web/20110606061453/http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf . 2011-06-06 .
2. Book: Sven Gehrmann . 2008 . Die Fauna der Nordsee – Niedere Tiere I: Krebstiere, Asselspinnen, Ringelwürmer, Stachelhäuter, Manteltiere & Schwämme . 1 . Books on Demand . 9783981255300 . 80 . Schwimmkrabbe, Polybius navigator (Herbst, 1794) . German . The fauna of the North Sea – lower animals I: crustaceans, sea-spiders, annelids, echinoderms, molluscs and sponges.
3. Web site: Arch-fronted swimming crab – Liocarcinus navigator . Kåre Telnes . The Marine Flora & Fauna of Norway . February 13, 2012 . December 8, 2012.
4. Web site: Liocarcinus arcuatus . Mario de Kluijver . Sarita Ingalsuo . amp. Marine Species Identification Portal . Macrobenthos of the North Sea – Crustacea . December 8, 2012.