Alvania (Taramellia) L. Seguenza, 1903 accepted as Manzonia (Taramellia) L. Seguenza, 1903 (basis of record)
Alvania (Taramellia) kenneyi Ladd, 1966 † accepted as Mareleptopoma kenneyi (Ladd, 1966) † (original description)
Arene metaltilana Ladd, 1966 † (original description)
Assiminea nitida eniwetokensis Ladd, 1966 † (original description)
Astraea (Vitiastraea) Ladd, 1966 † represented as Astraea Röding, 1798 (original description)
Astraea (Vitiastraea) holmesi Ladd, 1966 † represented as Astraea holmesi Ladd, 1966 † (original description)
Barleeia meiauhana Ladd, 1966 † (original description)
Cochliolepis diangalana Ladd, 1966 † (original description)
Gabrielona raunana Ladd, 1966 † (original description)
Isanda (Parminolia) apicina (A. Gould, 1861) accepted as Parminolia apicina (A. Gould, 1861) (basis of record)
Leptothyra emenana Ladd, 1966 † (original description)
Leptothyra harlani Ladd, 1966 † (original description)
Leptothyra wellsi Ladd, 1966 † (original description)
Leucorhynchia crossei (Tryon, 1888) (additional source)
Leucorhynchia lilli Ladd, 1966 † (original description)
Leucorhynchia stephensoni Ladd, 1966 † (original description)
Lophocochlias paucicarinatus Ladd, 1966 † (original description)
Lucilina russelli Ladd, 1966 † (original description)
Munditiella parryensis Ladd, 1966 † (original description)
Nerita (Ritena) palauensis Ladd, 1966 † represented as Nerita palauensis Ladd, 1966 † (original description)
Pisulina subpacifica Ladd, 1966 † (original description)
Schizochiton incisus goikulensis Ladd, 1966 † (original description)
Schizochiton marshallensis Ladd, 1966 † (original description)
Smaragdia colei Ladd, 1966 † (original description)
Synaptocochlea marshallensis Ladd, 1966 † (original description)
Tectarius (Subditotectarius) Ladd, 1966 † (original description)
Tectarius (Subditotectarius) rehderi Ladd, 1966 † represented as Tectarius rehderi Ladd, 1966 † (original description)
Teinostoma (Esmeralda) engebiense Ladd, 1966 represented as Esmeralda engebiensis (Ladd, 1966) (original description)