Jasus

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Jasus
Temporal range: MioceneRecent
Jasus edwardsii
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Family: Palinuridae
Genus: Jasus
Parker, 1883 [1]
Type species
Palinurus lalandii

Jasus is a genus of spiny lobsters which live in the oceans of the Southern Hemisphere.[2] They have two distinct "horns" projecting from the front of the carapace, but lack the stridulating organs present in almost all other genera of spiny lobsters.[2] Like all spiny lobsters, they lack claws, and have long stout antennae which are quite flexible.[2]

The generic name Jasus is derived from the Ancient Greek town of Iasos (on the Mediterranean Sea, located in modern Turkey), which was famous for its prawns and stamped them on some of its coins.[3][4][5]

Species

The following species are included in the genus Jasus:[6]

Image Scientific name Distribution
Jasus caveorum Webber & Booth, 1995 southeastern Pacific Ocean
Jasus edwardsii (Hutton, 1875) Southern Australia: Western Australia to New South Wales & Tasmania. South Island of New Zealand
Jasus frontalis (H. Milne-Edwards, 1837) Juan Fernández Islands, Islas Desventuradas
Jasus lalandii (H. Milne-Edwards, 1837) Southern Africa (Namibia to Algoa Bay, South Africa
Jasus paulensis (Heller, 1862) St. Paul Island and Amsterdam Island
Jasus tristani
Holthuis, 1963
Vema seamount

Another species, formerly known as "Jasus verreauxi" is found around New Zealand (especially the

Victoria and Tasmania); it is now placed in the genus Sagmariasus
.

Approximate distributions of the extant species of Jasus, after Phillips (2006).[7]
Orange: J. caveorum; pink: J. frontalis; red: J. tristani; yellow: J. lalandii; blue: J. paulensis; green: J. edwardsii

Fossils

Fisheries

Most of the extant species are liable to commercial exploitation, with the majority of the

Sagmariasus verreauxi.[9] Jasus lalandii is the most important commercial rock lobster in southern Africa.[10]

References

  1. ^ T. Jeffery Parker (1883). "On the structure of the head in Palinurus, with especial reference to the classification of the genus" (PDF). Transactions and Proceedings of the Royal Society of New Zealand. 16: 297–307.
  2. ^
    ISBN 92-5-103027-8. Archived from the original
    on 2008-04-21. Retrieved 2007-07-04.
  3. – via OpenEdition Books.
  4. ^ "Definition of JASUS". www.merriam-webster.com.
  5. ^ "The Numismatic Chronicle". Royal Numismatic Society. November 18, 2007 – via Google Books.
  6. ^ Tin-Yam Chan (2010). "Jasus Parker, 1883". WoRMS. World Register of Marine Species. Retrieved December 10, 2011.
  7. .
  8. .
  9. on July 3, 2007.
  10. ^ "Rock lobster Jasus lalandii". knet.co.za. Archived from the original on October 20, 2007. Retrieved July 4, 2007.

External links

  • Data related to Jasus at Wikispecies
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