Boccardia polybranchia (Haswell, 1885) (additional source)
Kinbergella McIntosh, 1909 accepted as Prionospio Malmgren, 1867 (source of synonymy)
Kinbergella plumosa McIntosh, 1909 accepted as Prionospio decipiens Söderström, 1920 (source of synonymy)
Laonice appelloefi Söderström, 1920 (original description)
Laonice bahusiensis Söderström, 1920 (original description)
Laonice brevicornis (Kinberg, 1866) (basis of record)
Laonice cirrata (M. Sars, 1851) (additional source)
Laonice sarsi Söderström, 1920 (original description)
Leucodore muticum Leuckart, 1849 (basis of record)
Mandane Kinberg, 1866 accepted as Laonice Malmgren, 1867 (source of synonymy)
Mandane brevicornis Kinberg, 1866 accepted as Laonice brevicornis (Kinberg, 1866) (source of synonymy)
Microspio Mesnil, 1896 (subsequent type designation)
Microspio arctica Söderström, 1920 accepted as Spio limicola Verrill, 1879 (original description)
Microspio theeli Söderström, 1920 accepted as Spio theeli (Söderström, 1920) (original description)
Perialla Kinberg, 1866 (source of synonymy)
Perialla claparedei Kinberg, 1866 accepted as Boccardia polybranchia (Haswell, 1885) (source of synonymy)
Polydora littorea Verrill, 1881 accepted as Polydora cornuta Bosc, 1802 (source of synonymy)
Polydora natrix Söderström, 1920 accepted as Boccardia natrix (Söderström, 1920) (original description)
Prionospio bocki Söderström, 1920 (original description)
Prionospio decipiens Söderström, 1920 (original description)
Prionospio fallax Söderström, 1920 (original description)
Prionospio plumosa M. Sars in G.O. Sars, 1872 (taxonomy source)
Prionospio plumosus M. Sars in G.O. Sars, 1872 accepted as Prionospio plumosa M. Sars in G.O. Sars, 1872 (taxonomy source)
Prionospio tenuis (Verrill, 1880) accepted as Prionospio steenstrupi Malmgren, 1867 (additional source)
Pygospio elegans Claparède, 1863 (additional source)
Spio Fabricius, 1785 (subsequent type designation)
Spio calcarea Templeton, 1836 accepted as Polydora calcarea (Templeton, 1836) (additional source)
Spio inversa Kuhlgatz, 1898 accepted as Pygospio elegans Claparède, 1863 (source of synonymy)
Spio seticornis (Linnaeus, 1767) (source of synonymy)
Spionides cirratus Webster & Benedict, 1887 accepted as Laonice cirrata (M. Sars, 1851) (source of synonymy)
Spiophanes tenuis Verrill, 1879 accepted as Prionospio steenstrupi Malmgren, 1867 (source of synonymy)

 Classification

 for Spionidae Grube, 1850

Classification of Spionidae into subfamilies has been relatively little used as, apart from the Polydora-group of ... [details]

 Editor's comment

 for Perialla Kinberg, 1866

Perialla Kinberg, 1866 is regarded by several authors as a senior subjective synonym to Boccardia, a widely used ... [details]

 Synonymy

 for Kinbergella McIntosh, 1909

As the only species was moved to Prionospio Malmgren, 1867 (and renamed for homonymy), therefore Kinbergella is a ... [details]

 Synonymy

 for Perialla claparedei Kinberg, 1866

In spite of having priority, Perialla claparedei Kinberg, 1866 was synonymized with Polydora polybranchia Haswell, ... [details]

 Taxonomy

 for Laonice japonica (Moore, 1907)

Monro (1933: 1047) established the new combination Laonice japonica (Moore, 1907), considering the species as valid ... [details]

 Type designation

 for Microspio Mesnil, 1896

Type species Spio mecznikowianus Claparede 1870 by subsequent designation. Mesnil created Microspio for the ... [details]