Cyrtomaia, from the Smithsonian Institution.

Belongs within: Heterotremata.

The Inachidae are a group of spider crabs in which the often long eyestalks lack orbits.

Characters (from Bennett 1964, as Inachinae): Eyes without orbits; eyestalks generally long, either non-retractile or retractile against sides of carapace or against acute postocular spine; basal article of antenna extremely slender throughout its length, usually long.

<==Inachidae [Inachinae]
    |    |--Camposcia retusa (Latreille 1829)MG-H11
    |    |--Trichoplatus Milne Edwards 1876B64
    |    |    `--*T. huttoni Milne Edwards 1876 (see below for synonymy)B64
    |    `--StenorhynchusB64
    |         |--S. fissifrons Haswell 1879B64
    |         |--S. lanceolatus (Brullé 1837)CCS04
    |         `--S. rostratusM01
    `--Macrocheiroidea [Macrocheiridae]B64
         |--Macrocheira kaempferiMD01
         `--Cyrtomaia Miers 1886 [incl. Echinomaia Borradaile 1916]B64
              |--C. balssi iIhle & Ihle-Landenberg 1931B64
              |--C. bicornis Ihle & Ihle-Landenberg 1931B64
              |--C. echinata Rathbun 1916B64
              |--C. goodridgei McArdle 1900B64
              |--C. hispida (Borradaile 1916) [=Echinomaia hispida; incl. C. platypes Yokoya 1933]B64
              |--C. horrida Rathbun 1916 (see below for synonymy)B64
              |--C. lamellata Rathbun 1906B64
              |--C. maccullochi Rathbun 1918MG-H11
              |--C. murrayi Miers 1886MG-H11
              |--C. septemspinosa Rathbun 1932B64
              |--C. smithi Rathbun 1893 [incl. C. smithi var. tenuipedunculata Ihle & Ihle-Landenberg 1931]B64
              `--C. suhmi Miers 1886B64
Inachidae incertae sedis:
    |--I. aguiarii De Brito Capello 1876KK03
    |--I. communissimus Rizza 1839KK03
    |--I. corallinusR26
    |--I. dorsettensis (Pennant 1777)TF08
    |--I. hirticornis Risso 1826R26
    |--I. leptochirus Leach 1817KK03
    |--I. mauritanicus Lucas 1846E12
    `--I. thoracicus Roux 1830KK03
    |--D. ramusculus (Baker 1906)MG-H11
    `--D. thomsoni (Thomson 1873)KK03
  Dumea latipes (Haswell 1880)MG-H11
  Ephippias endeavouri Rathbun 1918MG-H11
  Grypachaeus hyalinus (Alcock & Anderson 1894)MG-H11
  Physachaeus ctenurus Alcock 1895MG-H11
  Pleistacantha maxima Ahyong & Lee 2006MG-H11
  Sunipea indicus (Alcock 1895)MG-H11 [=Aepinus indicusJ90]
    |--P. fimbriata Rathbun 1916MG-H11
    `--P. wyvillethomsoni Miers 1886MG-H11
    |--O. angustifrons Takeda & Miyake 1969MG-H11
    |--O. araneus (De Haan 1839)HS15
    `--O. neptunus Adams & White 1848MG-H11
  Achaeopsis Stimpson 1857B64
  Macropodia Leach 1814B64
    |--M. czernjawskii (Brandt 1880)KK03
    |--M. linaresi Forest & Zariquiey-Alvarez 1964KK03
    |--M. longipes (Milne-Edwards & Bouvier 1899)KK03
    |--M. longirostrisPP64
    |--M. rostrata (Linnaeus 1761)KK03
    `--M. tenuirostris (Leach 1814)KK03
  Achaeus Leach 1817HS15, B64
    |--A. brevirostris (Haswell 1879)MG-H11
    |--A. cranchii Leach 1817KK03
    |--A. curvirostris (Milne-Edwards 1873)MG-H11
    |--A. gracilis Costa 1839KK03
    |--A. lacertosus Stimpson 1858MG-H11
    |--A. podocheloides Griffin 1970J90
    `--A. pugnax (de Man 1928)J90
  Litosus sexspinosus (Miers 1884)HS15

Cyrtomaia horrida Rathbun 1916 [incl. C. horrida var. japonica Balss 1924, C. horrida var. pilosa Ihle & Ihle-Landenberg 1931]B64

*Trichoplatus huttoni Milne Edwards 1876 [=Naxia huttoni; incl. Halimus hectori Miers 1876, H. rubiginosus Kirk 1881, Naxia (Halimus) rubiginosus]B64

*Type species of generic name indicated


[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.

[CCS04] Calado, R., P. Chevaldonné & A. dos Santos. 2004. A new species of the deep-sea genus Bresilia (Crustacea: Decapoda: Bresiliidae) discovered from a shallow-water cave in Madeira. Journal of the Marine Biological Association of the United Kingdom 84: 191–199.

[E12] Evenhuis, N. L. 2012. Publication and dating of the Exploration Scientifique de l’Algérie: Histoire Naturelle des Animaux Articulés (1846–1849) by Pierre Hippolyte Lucas. Zootaxa 3448: 1–61.

[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.

[MD01] Martin, J. W., & G. E. Davis. 2001. An updated classification of the Recent Crustacea. Natural History Museum Los Angeles County, Science Series 39: 1–124.

[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.

[M01] M’Intosh, W. C. 1901. The coloration of marine animals. Annals and Magazine of Natural History, series 7, 7: 221–240.

[PP64] Peres, J. M., & J. Picard. 1964. Nouveau manuel de bionomie benthique de la mer Mediterranee. Recueil des Travaux de la Station Marine d’Endoume, Bulletin 31 (27): 5–137.

[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.

[TF08] Teixeira, G. M., V. Fransozo, A. L. Castilho, R. C. da Costa & F. A. d. M. Freire. 2008. Size distribution and sex ration in the spider crab Epialtus brasiliensis (Dana 1852) associated with seaweed on a rocky shore in southeastern Brazil (Crustacea, Decapoda, Brachyura, Majoidea, Epialtidae). Senckenbergiana Biologica 88 (2): 169–175.

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