Genus Inermonephtys Fauchald, 1968

Type species. Inermonephtys inermis (Ehlers, 1887)

Diagnosis (after Ravara et al. 2010). The genus Inermonephtys is distinguished by the lack of antennae and all pharyngeal papillae, the long eversible cirriform nuchal organs, and the spindle-shaped jaws. Acicular lobes usually conical to acutely pointed; parapodial lamellae well developed; neuropodial superior lobes may be present on anterior parapodia. Branchiae long, narrow and involute. Lyriform chaetae present. Anterior parapodia may have more than one aciculum. Acicula of posterior parapodia with curved tips.