Bhawania goodei Webster, 1884 (original description)
Cirratulus tenuis Webster, 1884 accepted as Cirriformia websteri (Verrill, 1900) (original description)
Eunice denticulata Webster, 1884 (original description)
Eunice longicirrata Webster, 1884 accepted as Eunice websteri Fauchald, 1969 (original description)
Eunice longicirrata (Kinberg, 1865) (source of synonymy)
Eunice longicirrata (Kinberg, 1865) (additional source)
Eunice longisetis Webster, 1884 (original description)
Eunice mutilata Webster, 1884 accepted as Nicidion mutilata (Webster, 1884) (original description)
Eunice violacea Grube, 1856 accepted as Eunice macrobranchia Schmarda, 1861 (additional source)
Eurythoe macrotricha (Schmarda, 1861) accepted as Eurythoe complanata (Pallas, 1766) (additional source)
Fallacia proctochona (Schmarda, 1861) accepted as Hesione picta Müller in Grube, 1858 (additional source)
Halosydna leucohyba (Schmarda, 1861) (new combination reference)
Hermodice carunculata (Pallas, 1766) (additional source)
Marphysa acicularum Webster, 1884 (original description)
Nereis bairdii Webster, 1884 accepted as Perinereis anderssoni Kinberg, 1865 (original description)
Nereis gracilis Webster, 1884 (original description)
Nicidion kinbergi Webster, 1884 accepted as Eunice goodei Fauchald, 1992 (original description)
Oenone diphyllidia Schmarda, 1861 (additional source)
Ophelina maculata Webster, 1884 accepted as Armandia maculata (Webster, 1884) (original description)
Polynoe leucohyba Schmarda, 1861 accepted as Halosydna leucohyba (Schmarda, 1861) (source of synonymy)
Protulides Webster, 1884 accepted as Notaulax Tauber, 1879 (original description)
Protulides elegans Webster, 1884 accepted as Notaulax nudicollis (Krøyer, 1856) (original description)
Terebella magnifica Webster, 1884 accepted as Eupolymnia magnifica (Webster, 1884) (original description)

 Homonymy

 for Ceratonereis gracilis (Webster, 1884)

Ceratonereis gracilis (Webster, 1884) is unavailable, as based on an unreplaced primary junior homonym original ... [details]

 Homonymy

 for Cirratulus tenuis Webster, 1884

junior homonym to Cirratulus tenuis Verrill, 1873. Verrill 1900 subsequently created the replacement name ... [details]

 Homonymy

 for Cirratulus tenuis Verrill, 1873

Senior homonym to Cirratulus tenuis Webster, 1884, which was given the replacement name C. websteri by Verrill, 1900 [details]