Sphaerodoridium Lützen, 1961; Fauchald, 1974: 270 (in part); Capa et al., 2019: 66.
Sphaerodoropsis Hartman & Fauchald, 1971: 69 (in part); Fauchald, 1974: 261 (in part); Borowski, 1994: 23 (in part); Moreira, 2012: 30 (in part); Capa et al., 2014: 17 (in part).
Type species. Sphaerodorum claparedii Greeff, 1866.
Diagnosis. Body short and ovoid, some forms slender. Prostomial appendages short, spherical or digitiform; median antenna shorter or as long as lateral antennae; antenniform papillae absent or present. Macrotubercles sessile or stalked; smooth, without terminal papilla, arranged in more or less clear longitudinal rows, one transverse row per segment, with at least seven macrotubercles each. Microtubercles absent. Additional papillae over body surface and parapodia. Parapodia with compound chaetae; stout hooks in anterior chaetigers absent (after Capa et al. 2019).