Polyonyx is a genus of porcelain crabs in the family Porcellanidae. There are at least 42 described species in Polyonyx.^[1][2][3]

Quick Facts Polyonyx, Scientific classification ...

Polyonyx
Polyonyx gibbesi
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Anomura
Family:	Porcellanidae
Genus:	Polyonyx Stimpson, 1858

Close

The species belonging to the genus Polyonyx include the following:

• Polyonyx angustus Osawa, 2018
• Polyonyx biunguiculatus (Dana, 1852)
• Polyonyx boucheti Osawa, 2007
• Polyonyx bouvieri de Saint Joseph, 1900
• Polyonyx confinis Haig, 1960
• Polyonyx deezi Osawa & Sato, 2022
• Polyonyx gibbesi Haig, 1956
• Polyonyx haigae McNeill, 1968
• Polyonyx hendersoni Southwell, 1909
• Polyonyx heok Osawa & Ng, 2016
• Polyonyx kumejima Osawa & Ng, 2016
• Polyonyx loimicola Sankolli, 1965
• Polyonyx maccullochi Haig, 1965
• Polyonyx nitidus Lockington, 1878
• Polyonyx obesulus Miers, 1884
• Polyonyx pedalis Nobili, 1906
• Polyonyx pilosibrachium Osawa, Naruse & Ng, 2018
• Polyonyx planus Osawa & Ng, 2016
• Polyonyx quadratus Chace, 1956
• Polyonyx sasekumari Osawa, Naruse & Ng, 2018
• Polyonyx senegalensis Chace, 1956
• Polyonyx similis Osawa, 2015
• Polyonyx sinensis Stimpson, 1858
• Polyonyx socialis Werding & Hiller, 2019
• Polyonyx spina Osawa, 2007
• Polyonyx splendidus Sankolli, 1966
• Polyonyx thai Werding, 2001
• Polyonyx transversus (Haswell, 1882)
• Polyonyx triunguiculatus Zehntner, 1894
• Polyonyx tulearis Werding, 2001
• Polyonyx utinomii Miyake, 1943
• Polyonyx vermicola Ng & Sasekumar, 1993