Busycon willcoxi J. A. Gardner, 1948 † accepted as Pyruella willcoxi (J. A. Gardner, 1948) † (original description)
Caecum flemingi J. A. Gardner & Aldrich, 1919 † (additional source)
Caecum stevensoni O. Meyer, 1888 † (additional source)
Calliostoma carolinense J. A. Gardner, 1948 † (original description)
Calliostoma cheopsi J. A. Gardner, 1948 † (original description)
Calliostoma hertfordense J. A. Gardner, 1948 † (original description)
Calliostoma nottowayense J. A. Gardner, 1948 † (original description)
Calliostoma virginicum gizehi J. A. Gardner, 1948 † (original description)
Cochliolepis concava (H. C. Lea, 1843) † (new combination reference)
Cryoturris magnoliana chariessa J. A. Gardner, 1948 † (original description)
Cyclostremiscus obliquestriatus (H. C. Lea, 1843) † (new combination reference)
Cymatosyrinx tiara J. A. Gardner, 1948 † (original description)
Cymatosyrinx ziczac J. A. Gardner, 1948 † (original description)
Didianema carolinae J. A. Gardner, 1948 † (original description)
Diodora carolinensis (Conrad, 1873) † (new combination reference)
Diodora redimicula (Say, 1824) † (additional source)
Drillia polygonalis J. A. Gardner, 1948 † (original description)
Epitonium (Hyaloscala) carolinae J. A. Gardner, 1948 † (original description)
Epitonium (Hyaloscala) fasciatum J. A. Gardner, 1948 † (original description)
Epitonium (Hyaloscala) junceum J. A. Gardner, 1948 † (original description)
Ficus papyratia caloosahatchensis (B. Smith, 1907) † accepted as Ficus papyratia (Say, 1822) (new combination reference)
Gibbula americana Dall, 1892 † (additional source)
Gibbula americana yorktownensis J. A. Gardner, 1948 † (original description)
Glyphostoma zoster J. A. Gardner, 1948 † (original description)
Glyphostoma zoster mansfieldi J. A. Gardner, 1948 † (original description)
Glyphostoma zoster phroudon J. A. Gardner, 1948 † (original description)
Juliamitrella gardnerae (L. W. Ward & Blackwelder, 1987) † (additional source)
Macromphalina pierrot J. A. Gardner, 1948 (original description)
Natica aperta H. C. Lea, 1843 † accepted as Sinum chesapeakensis L. D. Campbell, 1993 † (source of synonymy)
Niso dalli J. A. Gardner, 1948 † (original description)
Rissoa geraea Dall, 1892 † (basis of record)
Rissoina (Schwartziella) harpa J. A. Gardner, 1948 † accepted as Schwartziella harpa (J. A. Gardner, 1948) † (original description)
Sconsia hodgii (Conrad, 1841) † (basis of record)
Strombina anomala (J. A. Gardner & Aldrich, 1919) † (new combination reference)
Teinostoma smikron J. A. Gardner, 1948 † (original description)
Terebra (Strioterebrum) grayi J. A. Gardner, 1948 † represented as Terebra grayi J. A. Gardner, 1948 † (original description)
Trajana J. A. Gardner, 1948 (original description)
Trajana pyta J. A. Gardner, 1948 † (original description)
Turritella alticostata Conrad, 1834 † (additional source)
Turritella holmesii Dall, 1892 † accepted as Caviturritella mansfieldi (Olsson, 1967) † (additional source)
Turritella pilsbryi J. A. Gardner, 1928 † (additional source)
Turritella plebeia carinata J. A. Gardner, 1948 † (original description)