Acanthodoris pina Ev. Marcus & Er. Marcus, 1967 (additional source)
Aclis tumens P. P. Carpenter, 1857 (basis of record)
Acteocina angustior F. Baker & G. D. Hanna, 1927 accepted as Acteocina infrequens (C. B. Adams, 1852) (basis of record)
Acteocina carinata (P. P. Carpenter, 1857) accepted as Acteocina inculta (A. Gould, 1855) (basis of record)
Acteocina inculta (A. Gould, 1855) (basis of record)
Acteocina infrequens (C. B. Adams, 1852) (additional source)
Acteocina smirna Dall, 1919 accepted as Acteocina inculta (A. Gould, 1855) (basis of record)
Acteon castus (Hinds, 1844) (additional source)
Acteon panamensis Dall, 1908 (basis of record)
Acteon traskii Stearns, 1897 (basis of record)
Acteon venustus (A. d'Orbigny, 1841) (basis of record)
Alaba guayaquilensis Bartsch, 1928 (basis of record)
Alaba interruptelineata Pilsbry & H. N. Lowe, 1932 (basis of record)
Alaba jeanettae Bartsch, 1910 (basis of record)
Alaba supralirata P. P. Carpenter, 1857 (basis of record)
Alabina crystallina (P. P. Carpenter, 1864) accepted as Opalia crystallina (P. P. Carpenter, 1864) (basis of record)
Alabina diomedeae Bartsch, 1911 accepted as Alabina excurvata (P. P. Carpenter, 1857) (source of synonymy)
Alabina effusa (P. P. Carpenter, 1857) (basis of record)
Alabina excurvata (P. P. Carpenter, 1857) (basis of record)
Alabina ignati Bartsch, 1911 (basis of record)
Alabina monicensis Bartsch, 1911 † (basis of record)
Alabina occidentalis (Hemphill, 1894) accepted as Murchisonella occidentalis (Hemphill, 1894) (additional source)
Alabina veraguaensis A. M. Strong & Hertlein, 1939 (basis of record)
Aligena cokeri Dall, 1909 accepted as Kelliopsis cokeri (Dall, 1909) (basis of record)
Aligena nucea Dall, 1913 accepted as Kelliopsis nucea (Dall, 1913) (basis of record)
Alvania milleriana Hertlein & A. M. Strong, 1951 accepted as Lapsigyrus mutans (P. P. Carpenter, 1857) (basis of record)
Alvinia albolirata (P. P. Carpenter, 1864) accepted as Lirobarleeia albolirata (P. P. Carpenter, 1864) (basis of record)
Alvinia clarionensis (Bartsch, 1911) accepted as Lirobarleeia clarionensis (Bartsch, 1911) (basis of record)
Alvinia contrerasi (E. K. Jordan, 1936) accepted as Lapsigyrus mutans (P. P. Carpenter, 1857) (basis of record)
Alvinia electrina (P. P. Carpenter, 1864) accepted as Lirobarleeia electrina (P. P. Carpenter, 1864)  (basis of record)
Alvinia galapagensis (Bartsch, 1911) accepted as Lirobarleeia galapagensis (Bartsch, 1911) (basis of record)
Alvinia granti (A. M. Strong, 1938) accepted as Lirobarleeia granti (A. M. Strong, 1938) (basis of record)
Alvinia halia (Bartsch, 1911) accepted as Alvania halia Bartsch, 1911 (basis of record)
Alvinia hoodensis (Bartsch, 1911) accepted as Lirobarleeia hoodensis (Bartsch, 1911) (basis of record)
Alvinia ima (Bartsch, 1911) accepted as Alvania ima Bartsch, 1911 (basis of record)
Alvinia inconspicua (C. B. Adams, 1852) accepted as Alvania monserratensis F. Baker, G. D. Hanna & A. M. Strong, 1930 (basis of record)
Alvinia ingrami (Hertlein & A. M. Strong, 1951) accepted as Lirobarleeia ingrami (Hertlein & A. M. Strong, 1951) (basis of record)
Alvinia lara (Bartsch, 1911) accepted as Lirobarleeia lara (Bartsch, 1911) (basis of record)
Alvinia mutans (P. P. Carpenter, 1857) accepted as Lapsigyrus mutans (P. P. Carpenter, 1857) (basis of record)
Alvinia myriosirissa (Shasky, 1970) accepted as Lapsigyrus myriosirissa Shasky, 1970 (basis of record)
Alvinia nemo (Bartsch, 1911) accepted as Lirobarleeia nemo (Bartsch, 1911) (basis of record)
Alvinia perlata (Mörch, 1860) accepted as Lirobarleeia perlata (Mörch, 1860) (basis of record)
Alvinia profundicola (Bartsch, 1911) accepted as Alvania profundicola Bartsch, 1911 (basis of record)
Alvinia tumida (P. P. Carpenter, 1857) accepted as Alvania tumida P. P. Carpenter, 1857 (basis of record)
Alvinia veleronis (Hertlein & A. M. Strong, 1939) accepted as Lirobarleeia veleronis (Hertlein & A. M. Strong, 1939) (basis of record)
Amerycina colpoica (Dall, 1913) (basis of record)
Amerycina cultrata Keen, 1971 (original description)
Amphithalamus stephensae Bartsch, 1927 accepted as Amphithalamus inclusus P. P. Carpenter, 1864 (basis of record)
Amphithalamus trosti A. M. Strong & Hertlein, 1939 accepted as Amphithalamus inclusus P. P. Carpenter, 1864 (basis of record)
Anabathridae Keen, 1971 (original description)
Anachis fayae Keen, 1971 (original description)
Ancistromesus mexicanus (Broderip & G. B. Sowerby I, 1829) accepted as Scutellastra mexicana (Broderip & G. B. Sowerby I, 1829) (basis of record)
Ancula lentiginosa Farmer, 1964 (basis of record)
Anticlimax (Subclimax) Pilsbry & Olsson, 1950 represented as Anticlimax Pilsbry & T. L. McGinty, 1946 (additional source)
Anticlimax (Subclimax) willetti Hertlein & A. M. Strong, 1951 represented as Anticlimax willetti Hertlein & A. M. Strong, 1951 (basis of record)
Antiopella barbarensis (J. G. Cooper, 1863) (basis of record)
Aorotrema humboldti (Hertlein & A. M. Strong, 1951) (basis of record)
Architectonica placentalis (Hinds, 1844) accepted as Discotectonica placentalis (Hinds, 1844) (basis of record)
Arene adusta J. H. McLean, 1970 (basis of record)
Arene balboai (A. M. Strong & Hertlein, 1939) (basis of record)
Arene echinata J. H. McLean, 1970 (basis of record)
Arene ferruginosa J. H. McLean, 1970 (basis of record)
Arene fricki (Crosse, 1865) (basis of record)
Arene guttata J. H. McLean, 1970 (basis of record)
Arene hindsiana Pilsbry & H. N. Lowe, 1932 (basis of record)
Arene lurida (Dall, 1913) (basis of record)
Arene olivacea (Dall, 1918) (basis of record)
Arene socorroensis (A. M. Strong, 1934) (basis of record)
Arene stellata J. H. McLean, 1970 (basis of record)
Assiminea californica (Tryon, 1865) accepted as Angustassiminea californica (Tryon, 1865) (basis of record)
Assiminea compacta (P. P. Carpenter, 1864) (basis of record)
Assiminea dubiosa (C. B. Adams, 1852) (basis of record)
Astraea babelis (P. Fischer, 1874) accepted as Uvanilla babelis (P. Fischer, 1874) (basis of record)
Astraea buschii (R. A. Philippi, 1844) accepted as Uvanilla buschii (R. A. Philippi, 1844) (basis of record)
Astraea olivacea (W. Wood, 1828) accepted as Uvanilla olivacea (W. Wood, 1828) (basis of record)
Astraea spirata (Dall, 1911) accepted as Pomaulax spiratus (Dall, 1911) (basis of record)
Astraea unguis (W. Wood, 1828) accepted as Uvanilla unguis (W. Wood, 1828) (basis of record)
Atys casta P. P. Carpenter, 1864 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857) (basis of record)
Atys chimera F. Baker & G. D. Hanna, 1927 accepted as Aliculastrum exaratum (P. P. Carpenter, 1857) (basis of record)
Atys exaratus (P. P. Carpenter, 1857) accepted as Aliculastrum exaratum (P. P. Carpenter, 1857) (basis of record)
Atys liriope Hertlein & A. M. Strong, 1951 (basis of record)
Balcis abreojosensis (Bartsch, 1917) accepted as Oceanida abreojosensis (Bartsch, 1917) (basis of record)
Balcis adamantina (de Folin, 1867) accepted as Melanella adamantina (de Folin, 1867) (basis of record)
Balcis bipartita (Mörch, 1860) accepted as Melanella bipartita (Mörch, 1859) (basis of record)
Barleeia alderi (P. P. Carpenter, 1857) (basis of record)
Barleeia bentleyi Bartsch, 1920 (basis of record)
Barleeia carpenteri Bartsch, 1920 (basis of record)
Barleeia orcutti Bartsch, 1920 (basis of record)
Barleeia polychroma (de Folin, 1870) (basis of record)
Barleeia zeteki A. M. Strong & Hertlein, 1939 accepted as Barleeia paupercula (C. B. Adams, 1852) (basis of record)
Bathybembix (Bathybembix) Crosse, 1893 accepted as Bathybembix Crosse, 1893 (basis of record)
Bathybembix (Bathybembix) macdonaldi (Dall, 1890) accepted as Bathybembix macdonaldi (Dall, 1890) (basis of record)
Bathybembix ceratophora (Dall, 1896) accepted as Calliotropis ceratophora (Dall, 1896) (basis of record)
Bathybembix equatorialis (Dall, 1908) accepted as Calliotropis equatorialis (Dall, 1908) (basis of record)
Bathybembix galapagana (Dall, 1908) (basis of record)
Batillaria mutata (Pilsbry & Vanatta, 1902) (basis of record)
Berghia amakusana (Baba, 1937) (basis of record)
Berthellina ilisima Ev. Marcus & Er. Marcus, 1967 (additional source)
Bittium arenaense Hertlein & A. M. Strong, 1951 (basis of record)
Bittium cerralvoense Bartsch, 1911 (basis of record)

 Status

 for Columbella livida G. B. Sowerby I, 1832

Keen (1971:906) discussed this species stating that the original material is lost, and that three specimens in ... [details]

 Status

 for Coralliophila aspera (A. Adams, 1855)

Keen (1971) noted that no specimens of the species had been reported in recent years and said that "it may well not ... [details]

 Taxonomy

 for Onoba fusiformis (P. P. Carpenter, 1856)

Keen (1971) transfered this species - with a query - from Aclis (Aclididae) to Onoba (Rissoidae). [details]