Ommatocarcinus macgillivrayi, from Macgillivray 1852.

Belongs within: Heterotremata.

The Goneplacidae has long been recognised as a somewhat poorly defined grouping of crabs of small to medium size.

Characters (from Davie 2002): Carapace hexagonal, transversely rectangular, trapezoidal, or transversely ovate; dorsal surface more or less convex, typically smooth, regions poorly defined; frontal margin usually entire, sometimes bi- to multilobate; anterolateral margins usually armed with 1-4 teeth or lobes, but sometimes entire. Orbits complete, may be moderately or greatly elongate. Interantennular septum typically narrow. Antenna folding obliquely or transversely. Third maxillipeds with carpus articulating at or near antero-internal angle of merus. Ambulatory legs gressorial, not broadly flattened for swimming. Male abdomen with seven free segments or with segments 3–5 fused and immovable. Male first gonopod moderately stout, weakly curved or sinuous; second gonopod short or long, but usually shorter than first. Male genital openings sternal or sterno-coxal, with vas deferens passing along open or closed groove in sternum.

    |--Euryplacinae [Euryplacidae]CA04
    |    |--Galenopsis Milne Edwards 1865CA04
    |    |--EucrateHS15
    |    |    |--E. crenata De Haan 1835J90
    |    |    `--E. haswelli Campbell 1969HS15
    |    `--Trissoplax dentata (Stimpson 1858)HS15
    |    |--PrionoplaxB68
    |    `--TetraplaxB68
    `--Goneplacinae [Carcinoplacinae]B68
         |    `--‘Galene’ proavita Glaessner 1960CA04
         |--Goneplax Leach in Brewster 1814B64
         |    |--G. mascaroneR26
         |    |--G. rhomboidalisR26
         |    `--G. rhomboides (Linnaeus 1758)KK03 [incl. G. angulatusH15]
         `--Ommatocarcinus White 1852B64
              |--O. arenicolaB68
              |--O. corioensis (Cresswell 1886)B64
              |--O. fibriophthalmus Yokoya 1933B64
              |--O. macgillivrayi White 1852 [incl. O. huttoni Filhol 1886]B64
              `--O. orientalis Tesch 1918B64
Goneplacidae incertae sedis:
  Neogoneplax renoculis (Rathbun 1914)MG-H11
  Notonyx nitidus Milne Edwards 1873MG-H11
  Paragoneplax serenei (Zarenkov 1972)MG-H11
  Platypilumnus soelae Garth 1987MG-H11
  Psopheticus stridulans Wood-Mason 1892MG-H11
    |--P. bispinosa (Rathbun 1914)MG-H11
    |--P. meridionalis (Rathbun 1923)MG-H11
    `--P. victoriensis Rathbun 1923MG-H11
  Branchioplax Rathbun 1916BWW93
  Martinezicancer Van Straelen 1939BWW93
  Tehuacana Stenzel 1949BWW93

*Type species of generic name indicated


[B68] Barnes, R. S. K. 1968. On the evolution of elongate ocular peduncles by the Brachyura. Systematic Zoology 17 (2): 182–187.

[B64] Bennett, E. W. 1964. The marine fauna of New Zealand: Crustacea Brachyura. New Zealand Department of Scientific and Industrial Research Bulletin 153: 1–120.

[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.

[CA04] Casadío, S., A. de Angeli, R. M. Feldmann, A. Garassino, J. L. Hetler, A. Parras & C. E. Schweitzer. 2004. New decapod crustaceans (Thalassinidea, Galatheoidea, Brachyura) from the Middle Oligocene of Patagonia, Argentina. Annals of Carnegie Museum 73 (2): 25–47.

Davie, P. J. F. 2002. Zoological Catalogue of Australia vol. 19.3B. Crustacea: Malacostraca: Eucarida (Part 2). Decapoda—Anomura, Brachyura. CSIRO Publishing: Collingwood (Victoria).

[H15] Harmer, S. F. 1915. The Polyzoa of the Siboga Expedition—Part I. Entoprocta, Ctenostomata and Cyclostomata. E. J. Brill: Leyden.

[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.

[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.

[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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