Porcellanidae Haworth, 1825
Polyonyx biunguiculatus (Dana, 1852)
Polyonyx boucheti Osawa, 2007
Polyonyx bouvieri Saint Joseph, 1900
Polyonyx confinis Haig, 1960
Polyonyx gibbesi Haig, 1956
Polyonyx haigae McNeil, 1968
Polyonyx hendersoni Southwell, 1909
Polyonyx loimicola Sankolli, 1965
Polyonyx maccullochi Haig, 1965
Polyonyx nitidus Lockington, 1878
Polyonyx obesulus Miers, 1884
Polyonyx pedalis Nobili, 1905
Polyonyx plumatus Yang & Xu, 1994
Polyonyx pugilatus
Polyonyx quadratus Chace, 1956
Polyonyx quadriungulatus Glassell, 1935
Polyonyx senegalensis Chace, 1956
Polyonyx sinensis Stimpson, 1858
Polyonyx spina Osawa, 2007
Polyonyx splendidus Sankolli, 1963
Polyonyx telestophilus Johnson, 1958
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
