Ammotrypane aulogaster Rathke, 1843 accepted as Ophelina acuminata Örsted, 1843 (additional source)
Anaitides catenula (Verrill, 1873) accepted as Phyllodoce catenula Verrill, 1873 (new combination reference)
Arabella iricolor (Montagu, 1804) (additional source)
Arabella iridescens Treadwell, 1906 (additional source)
Arabella zonata (Moore, 1903) (new combination reference)
Armandia agilis (Andrews, 1891) (new combination reference)
Armandia maculata (Webster, 1884) (new combination reference)
Armandia polyophthalma Kükenthal, 1887 (source of synonymy)
Audouinia oculata Treadwell, 1932 accepted as Timarete oculata (Treadwell, 1932) (source of synonymy)
Chone ecaudata (Moore, 1923) accepted as Paradialychone ecaudata (Moore, 1923) (new combination reference)
Chone infundibuliformis Krøyer, 1856 (additional source)
Cirratulus grandis Verrill, 1873 accepted as Cirriformia grandis (Verrill, 1873) (additional source)
Cirratulus tenuis Webster, 1884 accepted as Cirriformia websteri (Verrill, 1900) (source of synonymy)
Cirratulus tenuis Verrill, 1873 accepted as Cirriformia grandis (Verrill, 1873) (source of synonymy)
Cirriformia capillaris (Verrill, 1900) accepted as Cirriformia websteri (Verrill, 1900) (status source)
Cirriformia filigera (Delle Chiaje, 1828) (additional source)
Drilonereis robusta (Moore, 1903) (new combination reference)
Eteone trilineata Webster & Benedict, 1887 (additional source)
Eulalia viridis (Linnaeus, 1767) (additional source)
Eumidia vivida Verrill, 1873 accepted as Eulalia viridis (Linnaeus, 1767) (source of synonymy)
Eupholoe acuminata Treadwell, 1934 accepted as Psammolyce flava Kinberg, 1856 (source of synonymy)
Eupholoe cirrata Treadwell, 1934 accepted as Leanira cirrata (Treadwell, 1934) (source of synonymy)
Glycera mexicana (Chamberlin, 1919) (new combination reference)
Harmopsides Chamberlin, 1919 accepted as Lepidasthenia Malmgren, 1867 (source of synonymy)
Hypsicomus californicus (Treadwell, 1906) accepted as Notaulax californica (Treadwell, 1906) (additional source)
Hypsicomus circumspiciens Ehlers, 1887 accepted as Notaulax circumspiciens (Ehlers, 1887) (additional source)
Hypsicomus purpureus Treadwell, 1924 accepted as Notaulax occidentalis (Baird, 1865) (source of synonymy)
Laonome punctata Treadwell, 1906 accepted as Sabellastarte indica (Savigny, 1822) accepted as Sabellastarte spectabilis (Grube, 1878) (source of synonymy)
Laranda robusta Moore, 1903 accepted as Drilonereis robusta (Moore, 1903) (source of synonymy)
Leanira grubei (Treadwell, 1901) accepted as Sthenolepis grubei (Treadwell, 1901) (new combination reference)
Leanira hystricis Ehlers, 1874 (additional source)
Leanira robusta Verrill, 1885 (additional source)
Lepidasthenia alba (Treadwell, 1906) (additional source)
Lepidasthenia natans (Chamberlin, 1919) (new combination reference)
Lumbriconereis parvapedata Treadwell, 1901 accepted as Scoletoma parvapedata (Treadwell, 1901) (status source)
Lumbrineris acuta (Verrill, 1875) accepted as Lumbrinerides acuta (Verrill, 1875) (new combination reference)
Lumbrineris bilabiata (Treadwell, 1901) accepted as Eranno bilabiata (Treadwell, 1901) (new combination reference)
Lumbrineris erecta (Moore, 1904) accepted as Scoletoma erecta (Moore, 1904) (new combination reference)
Lumbrineris grandis Treadwell, 1906 (new combination reference)
Lumbrineris heteropoda (Marenzeller, 1879) accepted as Kuwaita heteropoda (Marenzeller, 1879) (new combination reference)
Lumbrineris maculata (Treadwell, 1901) (new combination reference)
Lumbrineris minuscula Moore, 1911 (additional source)
Lumbrineris moorei Hartman, 1942 (original description)
Lumbrineris parvapedata Treadwell, 1901 accepted as Scoletoma parvapedata (Treadwell, 1901) (new combination reference)
Lumbrineris zonata Johnson, 1901 accepted as Scoletoma zonata (Johnson, 1901) (new combination reference)
Megalomma circumspectum (Moore, 1923) accepted as Acromegalomma circumspectum (Moore, 1923) (new combination reference)
Nephthys circinata Verrill in Smith & Harger, 1874 accepted as Aglaophamus circinata (Verrill in Smith & Harger, 1874) (source of synonymy)
Nephtys macroura Schmarda, 1861 accepted as Aglaophamus macroura (Schmarda, 1861) (new combination reference)
Ophelia denticulata Verrill, 1875 (source of synonymy)
Ophelia limacina (Rathke, 1843) (additional source)
Ophelina agilis Andrews, 1891 accepted as Armandia agilis (Andrews, 1891) (new combination reference)
Petaloproctus filifer (Verrill, 1879) (additional source)
Phyllodoce arenae Webster, 1879 (source of synonymy)
Phyllodoce fragilis Webster, 1879 accepted as Nereiphylla fragilis (Webster, 1879) (additional source)
Phyllodoce magnaoculata Treadwell, 1901 (additional source)
Polynoe lucida Treadwell, 1906 accepted as Lepidasthenia alba (Treadwell, 1906) (source of synonymy)
Potamethus mucronatus (Moore, 1923) (new combination reference)
Potamilla californica Treadwell, 1906 accepted as Notaulax californica (Treadwell, 1906) (source of synonymy)
Praxillura ornata Verrill, 1879 (additional source)
Psammolyce flava Kinberg, 1856 (additional source)
Rhodine bitorquata Moore, 1923 (additional source)
Sabella picta Verrill, 1885 accepted as Chone picta (Verrill, 1885) (source of synonymy)
Sabellastarte indica (Savigny, 1822) accepted as Sabellastarte spectabilis (Grube, 1878) (additional source)
Sthenelais articulata Kinberg, 1856 (additional source)
Sthenelais hancocki Hartman, 1939 accepted as Sthenelais tertiaglabra Moore, 1910 (source of synonymy)
Sthenelais tertiaglabra Moore, 1910 (source of synonymy)

 Homonymy

 for Lumbrineris maculata (Treadwell, 1901)

Hartman (1942) correctly comments that Oenone maculata Milne Edwards is an Arabella, so there is no active ... [details]

 Nomenclature

 for Cirriformia capillaris (Verrill, 1900)

Hartman (1942: 67) placed replacement name Cirratulus websteri Verrill 1900 (created by Verrill for homonym C ... [details]

 Taxonomy

 for Sabella picta Verrill, 1885

Bush (1905: 216) does not recombine Sabella picta into Chone, but she goes close. She suggests the species belongs ... [details]