Alvania (Taramellia) L. Seguenza, 1903 accepted as Manzonia (Taramellia) L. Seguenza, 1903 (basis of record)
Alvania (Taramellia) corayi Ladd, 1966 accepted as Clatrosansonia corayi (Ladd, 1966) (original description)
Alvania (Taramellia) kenneyi Ladd, 1966 † accepted as Mareleptopoma kenneyi (Ladd, 1966) (original description)
Amphithalamus (Cerostraca) jeffcoati Ladd, 1966 † accepted as Eatoniella jeffcoati (Ladd, 1966) † (original description)
Amphithalamus (Cerostraca) meyersi Ladd, 1966 † accepted as Protobarleeia myersi (Ladd, 1966) (original description)
Amphithalamus (Pisinna) bikiniensis Ladd, 1966 † accepted as Pisinna bikiniensis (Ladd, 1966) † (original description)
Arene metaltilana Ladd, 1966 † (original description)
Assiminea nitida eniwetokensis Ladd, 1966 † (original description)
Astele (Callistele) engebiensis Ladd, 1966 † accepted as Callistele engebiensis (Ladd, 1966) † (original description)
Astraea (Astralium) eniwetokensis Ladd, 1966 † accepted as Astralium eniwetokense (Ladd, 1966) † (original description)
Astraea (Astralium) waluensis Ladd, 1966 † accepted as Astralium waluense (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)
Cingula (Peringiella) parryensis Ladd, 1966 † accepted as Cingula parryensis Ladd, 1966 † (original description)
Cochliolepis diangalana Ladd, 1966 † (original description)
Cyclostrema novemcarinatum Melvill, 1906 accepted as Circulus novemcarinatus (Melvill, 1906) (basis of record)
Cyclostremiscus emeryi Ladd, 1966 accepted as Lodderena emeryi (Ladd, 1966) (original description)
Cyclostremiscus novemcarinatus (Melvill, 1906) accepted as Lodderia novemcarinata (Melvill, 1906) accepted as Circulus novemcarinatus (Melvill, 1906) (basis of record)
Cynisca pacifica Ladd, 1966 † (original description)
Diodora (Elegidion) marshallensis Ladd, 1966 † accepted as Diodora marshallensis Ladd, 1966 † (original description)
Euchelus (Herpetopoma) instrictus suvaensis Ladd, 1966 † accepted as Herpetopoma instrictum suvaense (Ladd, 1966) † (original description)
Fossarina (Minopa) hoffmeisteri Ladd, 1966 accepted as Calliotrochus marmoreus (Pease, 1861) (original description)
Gabrielona raunana Ladd, 1966 † (original description)
Gibbula (Gibbula) engebiensis Ladd, 1966 † accepted as Gibbula engebiensis Ladd, 1966 † (original description)
Hemitoma (Montfortia) bikiniensis Ladd, 1966 † accepted as Montfortia bikiniensis (Ladd, 1966) † (original description)
Iravadia gardnerae Ladd, 1966 † accepted as Stosicia gardnerae (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 glareosa marshallensis Ladd, 1966 † accepted as Collonista glareosa marshallensis (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)
Lydiphnis eniwetokense Ladd, 1966 † (original description)
Merelina (Linemera) telkibana Ladd, 1966 † accepted as Merelina telkibana Ladd, 1966 † (original description)
Monilea (Monilea) belcheri (R. A. Philippi, 1850) accepted as Monilea belcheri (R. A. Philippi, 1850) (basis of record)
Monilea (Monilea) lifuana (P. Fischer, 1878) represented as Monilea lifuana (P. Fischer, 1878) accepted as Talopena vernicosa (A. Gould, 1861) accepted as Sericominolia vernicosa (A. Gould, 1861) (basis of record)
Monilea (Monilea) marshallensis Ladd, 1966 † accepted as Monilea marshallensis Ladd, 1966 † (original description)
Monilea apicina A. Gould, 1861 accepted as Parminolia apicina (A. Gould, 1861) (additional source)
Munditiella parryensis Ladd, 1966 † (original description)
Nerita (Ritena) palauensis Ladd, 1966 † represented as Nerita palauensis Ladd, 1966 † (original description)
Parashiela beetsi Ladd, 1966 accepted as Parashiela ambulata Laseron, 1956 (original description)
Pisulina subpacifica Ladd, 1966 † (original description)
Putilla (Parvisetia) goikulensis Ladd, 1966 † accepted as Lucidestea goikulensis (Ladd, 1966) † (original description)
Putilla (Parvisetia) suvaensis Ladd, 1966 † accepted as Lucidestea suvaensis (Ladd, 1966) † (original description)
Putilla (Pseudosetia) morana Ladd, 1966 † accepted as Pseudosetia morana (Ladd, 1966) † (original description)
Rissoina (Ailinzebina) abrardi (Ladd, 1966) accepted as Ailinzebina abrardi (Ladd, 1966) (original description)
Rissoina (Phosinella) alexisi Ladd, 1966 accepted as Phosinella digera (Laseron, 1956) (original description)
Rissoina (Phosinella) bikiniensis Ladd, 1966 † accepted as Rissoina bikiniensis Ladd, 1966 † (original description)
Rissoina (Phosinella) briggsi Ladd, 1966 † accepted as Phosinella briggsi (Ladd, 1966) † (original description)
Rissoina (Rissoina) abbotti Ladd, 1966 accepted as Zebinella abbotti (Ladd, 1966) † (original description)
Rissoina (Rissoina) ailinana Ladd, 1966 † accepted as Rissoina ailinana Ladd, 1966 † (original description)
Rissoina (Rissoina) ambigua parryensis Ladd, 1966 † accepted as Rissoina ambigua parryensis Ladd, 1966 † (original description)
Rissoina (Rissoina) ekkanana Ladd, 1966 † accepted as Rissoina ekkanana Ladd, 1966 † (original description)
Rissoina (Rissoina) goikulensis Ladd, 1966 † accepted as Rissoina goikulensis Ladd, 1966 † (original description)
Rissoina (Rissoina) lomaloana Ladd, 1966 † accepted as Rissoina lomaloana Ladd, 1966 † (original description)
Rissoina (Rissoina) mijana Ladd, 1966 † accepted as Zebinella mijana (Ladd, 1866) † (original description)
Rissoina (Rissoina) waluensis Ladd, 1966 † accepted as Rissoina waluensis Ladd, 1966 † (original description)
Rissoina (Rissolina) bourneae Ladd, 1966 † accepted as Rissoina bourneae Ladd, 1966 † (original description)
Rissoina (Rissolina) harti Ladd, 1966 † accepted as Rissoina harti Ladd, 1966 † (original description)
Rissoina (Rissolina) herringi Ladd, 1966 † accepted as Rissoina herringi Ladd, 1966 † (original description)
Rissoina (Rissolina) kickarayana Ladd, 1966 † accepted as Rissoina kickarayana Ladd, 1966 † (original description)
Rissoina (Rissolina) marshallensis Ladd, 1966 † accepted as Rissoina marshallensis Ladd, 1966 † (original description)
Rissoina (Schwartziella) jirikana Ladd, 1966 † accepted as Rissoina jirikana Ladd, 1966 † (original description)
Rissoina (Schwartziella) mejilana Ladd, 1966 † accepted as Rissoina mejilana Ladd, 1966 † (original description)
Rissoina (Schwartziella) rilebana Ladd, 1966 † accepted as Rissoina rilebana Ladd, 1966 † (original description)
Rissoina (Zebinella) emnanana Ladd, 1966 † accepted as Rissoina emnanana Ladd, 1966 † (original description)
Rissoina abbotti Ladd, 1966 † accepted as Zebinella abbotti (Ladd, 1966) † (original description)
Rissoina alexisi Ladd, 1966 † accepted as Phosinella alexisi (Ladd, 1966) † (original description)
Rissoina briggsi Ladd, 1966 † accepted as Phosinella briggsi (Ladd, 1966) † (original description)
Rissoina mijana Ladd, 1966 † accepted as Zebinella mijana (Ladd, 1866) † (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)
Teinostoma (Esmeralda) marshallensis Ladd, 1966 † accepted as Esmeralda marshallensis (Ladd, 1966) † (original description)
Turcica (Perrinia) morrisoni Ladd, 1966 accepted as Perrinia morrisoni (Ladd, 1966) (original description)
Vitrinella novemcarinata (Melvill, 1906) accepted as Lodderia novemcarinata (Melvill, 1906) accepted as Circulus novemcarinatus (Melvill, 1906) (basis of record)
Zebina (Ailinzebina) Ladd, 1966 accepted as Ailinzebina Ladd, 1966 (original description)
Zebina (Ailinzebina) abrardi Ladd, 1966 accepted as Ailinzebina abrardi (Ladd, 1966) (original description)
Zebina (Cibdezebina) metaltilana Ladd, 1966 † represented as Zebina metaltilana Ladd, 1966 † (original description)
Zebina (Morchiella) killeblebana Ladd, 1966 † accepted as Zebina killeblebana Ladd, 1966 † (original description)

Bikini for Turcica (Perrinia) morrisoni Ladd, 1966 
Eniwetok Atoll for Alvania (Taramellia) corayi Ladd, 1966 
Eniwetok Atoll for Alvania (Taramellia) kenneyi Ladd, 1966 † 
Eniwetok Atoll for Monilea (Monilea) marshallensis Ladd, 1966 † 
Fiji for Astraea (Astralium) waluensis Ladd, 1966 † 
Marshall Islands for Astraea (Astralium) eniwetokensis Ladd, 1966 † 
Marshall Islands for Teinostoma (Esmeralda) engebiense Ladd, 1966 

 Additional information

 for Rissoina schmackeri O. Boettger, 1887

original specific epithet is Schmackeri [details]

 Taxonomy

 for Alvania corayi Ladd, 1966

Originally described as Alvania (Taramellia) c., this species belongs to Pickworthiidae. [details]