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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Crustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Eucarida
Ordo: Decapoda
Subordo: Pleocyemata
Infraordo: Anomura
Superfamilia: Chirostyloidea

Familia: Chirostylidae
Genus: Gastroptychus
Synonyms (1): Ptychogaster

Species (21): G. affinis – G. brachyterus – G. brevipropodus – G. cavimurus – G. defensus – G. formosus – G. hawaiiensis – G. hendersoni – G. iaspis – G. investigatoris – G. laevis – G. meridionalis – G. milneedwardsi – G. novaezelandiae – G. paucispina – G. perarmatus – G. rogeri – G. salvadori – G. spinifer – G. sternoornatus – G. valdiviae

Gastroptychus Caullery, 1896 [new replacement name for Ptychogaster Milne Edwards, 1880-1881]
Primary references

Caullery, M. 1896. Résultats scientifiques de la campagne du "Caudan" dans le Golfe de Gascogne, août-septembre 1895. Crustacés Schizopodes et Décapodes. Annales de l'Université de Lyon. 26: 365-419, Pl. 13-17. BHL Reference page. [page 390]

Additional references

Baba, K., 1974: Four new species of galatheidean crustacea from New Zealand waters. Journal of the Royal Society of New Zealand, 4 (4): 381–393. Abstract and full article: DOI: 10.1080/03036758.1974.10419382


BHL bibliography
Gastroptychus – Taxon details on Encyclopedia of Life (EOL).
Global Biodiversity Information Facility. 2019. GBIF Backbone Taxonomy. Checklist dataset. Taxon: Gastroptychus.
Macpherson, E.; Türkay, M. (2012). Gastroptychus. Accessed through: World Register of Marine Species at on 2012-05-10

Gastroptychus is a genus of squat lobsters in the family Chirostylidae, containing the following species:[1]

Gastroptychus affinis (Chace, 1942)
Gastroptychus brachyterus Baba, 2005
Gastroptychus brevipropodus Baba, 1991
Gastroptychus cavimurus Baba, 1977
Gastroptychus defensus (Benedict, 1902)
Gastroptychus formosus (Filhol, 1884)
Gastroptychus hawaiiensis Baba, 1977
Gastroptychus hendersoni (Alcock & Anderson, 1899)
Gastroptychus iaspis Baba & Haig, 1990
Gastroptychus investigatoris (Alcock & Anderson, 1899)
Gastroptychus laevis (Henderson, 1885)
Gastroptychus meridionalis de Melo-Filho & de Melo, 2004
Gastroptychus milneedwardsi (Henderson, 1885).
Gastroptychus novaezelandiae Baba, 1974
Gastroptychus paucispina Baba, 1991
Gastroptychus perarmatus (Haig, 1968)
Gastroptychus rogeri Baba, 2000
Gastroptychus salvadori Rice & Miller, 1991
Gastroptychus spinifer (A. Milne Edwards, 1880)
Gastroptychus sternoornatus (Van Dam, 1933)
Gastroptychus valdiviae (Balss, 1913)


Keiji Baba; Enrique Macpherson; Gary C. B. Poore; Shane T. Ahyong; Adriana Bermudez; Patricia Cabezas; Chia-Wei Lin; Martha Nizinski; Celso Rodrigues; Kareen E. Schnabel (2008). "Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura – families Chirostylidae, Galatheidae and Kiwaidae)" (PDF). Zootaxa. 1905: 1–220.


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