Southern rock lobster or crayfish Jasus edwardsii, copyright Stemonitis.

Belongs within: Reptantia.
Contains: Stridentes.

The Achelata, spiny and slipper lobsters, are a group of marine decapods characterised by the lack of chelae on most pereiopods.

Synapomorphies (from Dixon et al. 2003): Eyestalks with row of hairs alongside eye; second antenna greatly enlarged, basal articles of second antennae fused with epistome; pereiopods (except fifth) achelate. Carapace held to body by knob emanating from last thoracic somite; lineae absent; pleon with prominent hinges; pleurites pointed; tail fan soft distally; telson with fixed lateral spines. Phyllosoma larva present.

<==Achelata [Palinuroidea]
    |    |  i. s.: PalinustusG05
    |    |         PalibythusG05
    |    |         Palinurina Woodward 1867BWW93
    |    |--StridentesG05
    |    `--SilentesG05
    |         |--Palinurellus [Synaxidae]G05
    |         |    `--P. gundlachi von Martens 1878DAS03
    |         |--SagmariasusG05
    |         |    |--S. flemingiG05
    |         |    `--S. verreauxiiG05
    |         |--ProjasusG05
    |         |    |--P. bahamondeiG05
    |         |    `--P. parkeriG05
    |         `--JasusG05
    |              |--J. edwardsii (Hutton 1875)H86
    |              |--J. frontalisG05
    |              |--J. lalandei (Milne Edwards 1837)H86
    |              |--J. novaehollandiaeG05
    |              |--J. paulensisL95
    |              |--J. tristaniG05
    |              `--J. verreauxiMC05
         |  i. s.: Scyllarella gardneri Woods 1925BWW93
         |--Thenus [Theninae]BW05
         |    |--T. australiensis Burton & Davie 2007HS15
         |    `--T. orientalis (Lund 1793)DAS03
         |    |--Arctides guineensisBW05
         |    `--ScyllaridesBW05
         |         |--S. aequinoctialisBW05
         |         |--S. astoriBW05
         |         |--S. herklotsiiBW05
         |         |--S. latus (Latreille 1803)KK03
         |         |--S. nodiferBW05
         |         |--S. punctatus Woods 1925BWW93
         |         `--S. squammosus (Milne Edwards 1837)J90
         |    |--Evibacus Smith 1869BW05, B55
         |    |    `--E. princeps Smith 1869 [=Evibaccus (l. c.) princeps]B55
         |    |--ParribacusBW05
         |    |    |--P. antarcticus (Lund 1793)TSH09
         |    |    |--P. caledonicusBW05
         |    |    `--P. scarlatinusBW05
         |    `--IbacusBW05
         |         |--I. alticrenatus Bate 1888MG-H11
         |         |--I. chaceiBW05
         |         |--I. ciliatusBW05
         |         |--I. novemdentatusBW05
         |         `--I. peronii Leach 1815MG-H11
              |--Antipodarctus aoteanus [=Scyllarus aoteanus]BW05
              |    |--B. sordidus (Stimpson 1860)HS15
              |    `--B. vitiensis (Dana 1852)HS15
              |--Chelarctus cultrifer [=Scyllarus cultrifer]BW05
              |--Remiarctus bertholdii (Paulson 1875)BW05, MG-H11
              |--Scammarctus bateiBW05
              |    |--C. bicuspidatus [=Scyllarus bicuspidatus]BW05
              |    `--C. crenatus (Whitelegge 1900)MG-H11
              |    |--E. martensiiBW05
              |    `--E. modestusBW05
              |    |--G. kitanoviriosusBW05
              |    `--G. timidusBW05
              |    |--P. demani (Holthuis 1946)BW05, J90 [=Scyllarus demaniBW05]
              |    `--P. rugosusBW05
                   |--S. americanus (Smith 1869)C73
                   |--S. arctus (Linnaeus 1758)DAS03
                   |--S. chaceiBW05
                   |--S. cicadaR26
                   |--S. depressusBW05
                   |--S. latusR26
                   |--S. planorbisBW05
                   `--S. pygmaeus (Bate 1888)KK03

*Type species of generic name indicated


[BW05] Booth, J. D., W. R. Webber, H. Sekiguchi & E. Coutures. 2005. Diverse larval recruitment strategies within the Scyllaridae. New Zealand Journal of Marine and Freshwater Research 39 (3): 581–592.

[B55] Bott, R. 1955. Dekapoden (Crustacea) aus El Salvador. 2. Litorale Dekapoden, außer Uca. Senckenbergiana Biologica 36: 45–70.

[BWW93] Briggs, D. E. G., M. J. Weedon & M. A. Whyte. 1993. Arthropoda (Crustacea excluding Ostracoda). In: Benton, M. J. (ed.) The Fossil Record 2 pp. 321–342. Chapman & Hall: London.

[C73] Camp, D. K. 1973. Stomatopod Crustacea. Memoirs of the Hourglass Cruises 3 (2): 1–100.

[DAS03] Dixon, C. J., S. T. Ahyong & F. R. Schram. 2003. A new hypothesis of decapod phylogeny. Crustaceana 76: 935–975.

[G05] George, R. W. 2005. Evolution of life cycles, including migration, in spiny lobsters (Palinuridae). New Zealand Journal of Marine and Freshwater Research 39: 503–514.

[H86] Holthuis, L. B. 1986. Decapoda. In: Botosaneanu, L. (ed.) Stygofauna Mundi: A Faunistic, Distributional, and Ecological Synthesis of the World Fauna inhabiting Subterranean Waters (including the Marine Interstitial) pp. 589–615. E. J. Brill/Dr. W. Backhuys: Leiden.

[HS15] Hosie, A. M., A. Sampey, P. J. F. Davie & D. S. Jones. 2015. Kimberley marine biota. Historical data: crustaceans. Records of the Western Australian Museum Supplement 84: 247–285.

[J90] Jones, D. S. 1990. Annotated checklist of marine decapod Crustacea from Shark Bay, Western Australia. In: Berry, P. F., S. D. Bradshaw & B. R. Wilson (eds) Research in Shark Bay: Report of the France-Australe Bicentenary Expedition Committee pp. 169–208. Western Australian Museum.

[KK03] Kocataş, A., & T. Katağan. 2003. The decapod crustacean fauna of the Turkish seas. Zoology in the Middle East 29: 63–74.

[L95] Laubitz, D. R. 1995. Caprellidea (Crustacea: Amphipoda) from the southern and western Indian Ocean. Mésogée 54: 81–100.

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[MC05] Montgomery, S. S., & J. R. Craig. 2005. Distribution and abundance of recruits of the eastern rock lobster (Jasus verreauxi) along the coast of New South Wales, Australia. New Zealand Journal of Marine and Freshwater Research 39 (3): 619–628.

[R26] Risso, A. 1826. Histoire naturelle des principales productions de l’Europe méridionale et particulièrement de celles des environs de Nice et des Alpes maritimes vol. 5. F.-G. Levrault: Paris.

[TSH09] Titelius, M. A., A. Sampey & C. G. Hass. 2009. Crustaceans of Mermaid (Rowley Shoals), Scott and Seringapatam Reefs, north Western Australia. Records of the Western Australian Museum Supplement 77: 145–176.

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