Aclis mizon R. B. Watson, 1881 accepted as Costaclis mizon (R. B. Watson, 1881) (basis of record)
Aclis muchia Locard, 1896 accepted as Aclis mizon R. B. Watson, 1881 accepted as Costaclis mizon (R. B. Watson, 1881) (basis of record)
Batheulima apicofusca (Locard, 1897) accepted as Batheulima fuscoapicata (Jeffreys, 1884) (basis of record)
Benthonella nisonis Dall, 1889 accepted as Thaleia nisonis (Dall, 1889) (basis of record)
Costaclis joubini (Dautzenberg & Fischer, 1897) accepted as Costaclis mizon (R. B. Watson, 1881) (basis of record)
Costaclis muchia (Locard, 1896) accepted as Costaclis mizon (R. B. Watson, 1881) (basis of record)
Costaclis nucleata (Dall, 1889) accepted as Costaclis hyalina (R. B. Watson, 1881) (basis of record)
Cuspeulima fasciata (R. B. Watson, 1883) accepted as Melanella fasciata (R. B. Watson, 1883) (basis of record)
Entoconcha parasita (Baur, 1864) accepted as Entoconcha mirabilis J. Müller, 1852 (basis of record)
Eulima apicofusca Locard, 1897 accepted as Batheulima fuscoapicata (Jeffreys, 1884) (basis of record)
Eulima chaunax R. B. Watson, 1883 (basis of record)
Eulima cylindrata R. B. Watson, 1883 (basis of record)
Eulima fasciata R. B. Watson, 1883 accepted as Melanella fasciata (R. B. Watson, 1883) (basis of record)
Eulima fuscoapicata Jeffreys, 1884 accepted as Batheulima fuscoapicata (Jeffreys, 1884) (basis of record)
Eulima gomphus R. B. Watson, 1883 (basis of record)
Eulima jeffreysii Tryon, 1886 accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Eulima martyni Kobelt, 1903 accepted as Melanella martynjordani (H. K. Jordan, 1895) (basis of record)
Eulima martynjordani H. K. Jordan, 1895 accepted as Melanella martynjordani (H. K. Jordan, 1895) (basis of record)
Eulima piriformis var. bizonata Jeffreys, 1884 accepted as Eulima fuscozonata Bouchet & Warén, 1986 (basis of record)
Eulima platyacme Sykes, 1903 accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Eulima pseudoglabra Dautzenberg & H. Fischer, 1912 accepted as Melanella pseudoglabra (Dautzenberg & H. Fischer, 1912) (basis of record)
Eulima solidula Jeffreys, 1880 accepted as Melanella platyacme (Sykes, 1903) accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Eulima subangulata Jeffreys, 1880 accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Haliella geographica (de Folin, 1887) accepted as Haliella stenostoma (Jeffreys, 1858) (basis of record)
Melanella obtusa (Jeffreys, 1884) accepted as Melanella obtusoapicata Bouchet & Warén, 1986 (basis of record)
Melanella platyacme (Sykes, 1903) accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Melanella solida (Jeffreys, 1884) accepted as Melanella jeffreysii (Tryon, 1886) (basis of record)
Niso joubini Dautzenberg & H. Fischer, 1897 accepted as Costaclis mizon (R. B. Watson, 1881) (basis of record)
Ophieulima fuscoapicata Warén, 1981 (basis of record)
Stylifer abyssorum Locard, 1897 accepted as Pisolamia brychia (R. B. Watson, 1883) (basis of record)
Zebina hebes (R. B. Watson, 1883) (basis of record)

 Synonymy

 for Melanella (Melanella) tacomaensis Bartsch, 1917

possibly a synonym of Melanella (Balcis) comoxensis Bartsch, 1917, in genus Amamibalcis [details]

 Synonymy

 for Melanella berryi Bartsch, 1917

possibly a synonym of Melanella (Balcis) comoxensis Bartsch, 1917, in genus Amamibalcis [details]

 Taxonomy

 for Curveulima flavipunctata Habe, 1961

possibly in genus Amamibalcis  [details]

 Taxonomy

 for Eulima fasciata R. B. Watson, 1883

possibly in genus Cuspeulima [details]