Jasus

Taxobox
name = "Jasus"


image_width = 240px
image_caption = A "J. lalandii" individual missing its antennae
regnum = Animalia
phylum = Arthropoda
subphylum = Crustacea
classis = Malacostraca
ordo = Decapoda
subordo = Pleocyemata
infraordo = Achelata
familia = Palinuridae
genus = "Jasus"
genus_authority = Parker, 1883 [cite journal |quotes=no |url=http://rsnz.natlib.govt.nz/volume/rsnz_16/rsnz_16_00_006580.pdf |year=1883 |author=T. Jeffery Parker |title=On the structure of the head in "Palinurus", with especial reference to the classification of the genus |journal=Transactions and Proceedings of the Royal Society of New Zealand |volume=16 |pages=297–307]
subdivision_ranks = Species
subdivision = "Jasus edwardsii" (Hutton, 1875)
"Jasus frontalis" (H. Milne-Edwards, 1837)
"Jasus lalandii" (H. Milne-Edwards, 1837)
"Jasus novaehollandiae" Holthuis, 1963
"Jasus paulensis" (Heller, 1862)
"Jasus tristani" Holthuis, 1963
"Jasus verreauxi" (H. Milne Edwards, 1851)
type_species = "Palinurus lalandii"
type_species_authority = H. Milne Edwards, 1837

"Jasus" is a genus of spiny lobsters which live in the oceans of the Southern Hemisphere .cite book |title=Marine lobsters of the world |author=Lipke Holthuis |year=1991 |url=http://ip30.eti.uva.nl/bis/lobsters.php?selected=beschrijving&menuentry=soorten&record=Jasus |publisher=Food and Agriculture Organization |id=ISBN 92-5-103027-8] 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 . Like all spiny lobsters, they lack claws, and have long stout antennae which are quite flexible .

Fisheries

All seven species are liable to commercial exploitation, with the majority of the AUS$ 4.6 million New South Wales lobster fishery industry being based on "J. verreauxi" and "J. edwardsii" .cite web |url=http://www.fisheries.nsw.gov.au/commercial/commercial2/lobster_fishery |title=Lobster fishery |publisher=New South Wales Department of Primary Industries |date=2007-06-27] "J. verreauxi" and "J. edwardsii" are the only "lobsters" to occur around the coasts of New Zealand .cite book |author=Richard Bevis Pike |editor=A. H. McLintock |chapter=Crayfish |title=An Encyclopaedia of New Zealand |year=1966 |url=http://www.teara.govt.nz/1966/C/Crayfish/Crayfish/en] "Jasus lalandii" is the most important commercial rock lobster in southern Africa .cite web |url=http://www.knet.co.za/rjtlob/ |title=Rock lobster "Jasus lalandii" |publisher=knet.co.za |accessdate=2007-07-04]

Distribution

*"Jasus edwardsii" — Southern Australia - Victoria, South Australia & Tasmania. South Island of New Zealand
*"Jasus frontalis" — Juan Fernández Islands, Islas Desventuradas
*"Jasus lalandii" — Southern Africa (Namibia to Algoa Bay, South Africa
*"Jasus novaehollandiae" — Australia (Western Australia to New South Wales)
*"Jasus paulensis" — St. Paul Island and Amsterdam Island
*"Jasus tristani" — Tristan da Cunha archipelago; Vema seamount
*"Jasus verreauxi" — New Zealand (esp. North Island), Chatham Islands, Australia (Queensland to Victoria, Tasmania)

ee also

*Spiny lobster
*Southern rock lobster ("Jasus edwardsii")
*Lobster

References