Grapsus (Platynotus)| de Haan, 1833-1849 (1835): 34 (not Platynotus Wagler, 1830 (Reptilia)).
Gaetice Gistel, 1848: 10. -- Tesch, 1918a: 84. -- Sakai, 1939: 676. -- Sakai, 1965b: 200. -- Sakai, 1976a: 652. -- Dai & Yang, 1991: 528. -- Wada, 1995: 406(key).
Platynotus| Dana, 1852c: 332.
Platygrapsus| Stimpson, 1858b: 107. -- Miers, 1886: 263. -- Stimpson, 1907: 128.