Nicidion
Nicidion is een geslacht van borstelwormen uit de familie van de Eunicidae.

Soorten 
 Nicidion amoureuxi (Rullier, 1974)
 Nicidion angeli (Carrera-Parra & Salazar-Vallejo, 1998)
 Nicidion cariboea (Grube, 1856)
 Nicidion cincta Kinberg, 1865
 Nicidion fuscafasciata Treadwell, 1922
 Nicidion hentscheli (Augener, 1931)
 Nicidion insularis (Nogueira, Steiner & Amaral, 2001)
 Nicidion longula (Ehlers, 1887)
 Nicidion megabalanicola Hsueh & Li, 2014
 Nicidion mikeli (Carrera-Parra & Salazar-Vallejo, 1998)
 Nicidion mutilata (Webster, 1884)
 Nicidion notata (Treadwell, 1921)
 Nicidion obtusa (Verrill, 1900)
 Nicidion samoae (Hartmann-Schröder, 1965)

Synoniemen 
 Nicidion brevis Ehlers, 1887 => Eunice brevis (Ehlers, 1887)
 Nicidion edentulum Ehlers, 1901 => Palola edentulum (Ehlers, 1901)
 Nicidion gallapagensis Kinberg, 1865 => Palola edentulum (Ehlers, 1901)
 Nicidion gracilis Crossland, 1904 => Eunice wasinensis Fauchald, 1992
 Nicidion imogena Monro, 1924 => Eunice imogena (Monro, 1924)
 Nicidion incerta Hansen, 1882 => Eunice cariboea Grube, 1856 => Nicidion cariboea (Grube, 1856)
 Nicidion kinbergi Webster, 1884 => Eunice goodei Fauchald, 1992
 Nicidion leucodon Ehlers, 1901 => Palola leucodon (Ehlers, 1901)
 Nicidion longicirrata Kinberg, 1865 => Eunice longicirrata (Kinberg, 1865)

Eunicidae