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Title: Bythograeoidea  
Author: World Heritage Encyclopedia
Language: English
Subject: Crab, Decapoda
Publisher: World Heritage Encyclopedia


Austinograea yunohana
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Section: Eubrachyura
Subsection: Heterotremata
Superfamily: Bythograeoidea
Williams, 1980
Family: Bythograeidae
Williams, 1980
  • Allograea
  • Austinograea
  • Bythograea
  • Cyanagraea
  • Gandalfus
  • Segonzacia

Bythograeidae is a small family of crabs which live around hydrothermal vents. The family contains 14 species in 6 genera.[1][2] Their relationships to other crabs are unclear.[3] They are believed to eat bacteria and other vent organisms.


  • Genus Allograea Guinot, Hurtado & Vrijenhoek, 2002
    • Allograea tomentosa Guinot, Hurtado & Vrijenhoek, 2002
  • Genus Austinograea Hessler & Martin, 1989
    • Austinograea alayseae Guinot, 1990
    • Austinograea rodriguezensis Tsuchida & Hashimoto, 2002
    • Austinograea williamsi Hessler & Martin, 1989
  • Genus Bythograea Williams, 1980
    • Bythograea galapagensis Guinot & Hurtado, 2003
    • Bythograea intermedia Saint Laurent, 1988
    • Bythograea laubieri Guinot & Segonzac, 1997
    • Bythograea microps Saint Laurent, 1984
    • Bythograea thermydron Williams, 1980
    • Bythograea vrijenhoeki Guinot & Hurtado, 2003
  • Genus Cyanagraea Saint Laurent, 1984
    • Cyanagraea praedator Saint Laurent, 1984
  • Genus Gandalfus McLay, 2007
    • Gandalfus puia McLay, 2007
    • Gandalfus yunohana (Takeda, Hashimoto & Ohta, 2000)
  • Genus Segonzacia Guinot, 1989
    • Segonzacia mesatlantica (Williams, 1988)


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