On the generic nomenclature of nine brachyuran names, with four replacement names and two nomina protecta (Crustacea: Decapoda)

Four generic names for Brachyura were found to be preoccupied: Epithelphusa Rodríguez & Smalley, 1969, Forsteria Bott, 1969, Odhneria Sakai, 1983, and Villalobosus Ng & Alvarez, 2000. Replacement names are here proposed for them. Two junior homonyms, Psaumis Kossmann, 1877, and Quadrella Dana, 1851, do not need to be replaced as the senior homonyms have not been used as valid names since 1899, and the implementation of Article 23 of the Code allows the names to be maintained as a nomina protecta. The nomenclature of three other names: Mithrax Latreille, 1816, Naxia Latreille, 1825, and Thia Leach, 1816, are also discussed.