Revision of the Isopod Family Sphaeromatidae (Crustacea: Isopoda: Flabellifera) I. Subfamily Names with Diagnoses and Key

Nomenclature used to designate groups of sphaeromatid genera is discussed. New, properly formed, names are proposed to replace the previously incorrectly formed subgroups of Hansen and others that have been proposed over the years since Hansen. A diagnosis and list of the genera with authors is given for each subfamily. A key to the subfamilies is provided.