Achatina gundlachi L. Pfeiffer, 1850 accepted as Geostilbia aperta (Swainson, 1840) (original description)
Achatina salleana L. Pfeiffer, 1850 accepted as Leptinaria salleana (L. Pfeiffer, 1850) (original description)
Bulimus cailliaudi L. Pfeiffer, 1850 accepted as Limicolaria cailliaudi (L. Pfeiffer, 1850) (original description)
Bulimus compressus L. Pfeiffer, 1850 (original description)
Cyclostoma dominicense L. Pfeiffer, 1850 accepted as Colonina dominicensis (L. Pfeiffer, 1850) (original description)
Cyclostoma litturatum L. Pfeiffer, 1850 accepted as Parachondria salleana (L. Pfeiffer, 1850) (original description)
Cyclostoma moreleti L. Pfeiffer, 1850 accepted as Opisthosiphon moreletianum moreletianum (Petit de la Saussaye, 1850) (original description)
Cyclostoma petitianum L. Pfeiffer, 1850 accepted as Parachondria petitiana (L. Pfeiffer, 1850) (original description)
Cyclostoma salleanum L. Pfeiffer, 1850 accepted as Parachondria salleana (L. Pfeiffer, 1850) (original description)
Cyclostoma semilabre Lamarck, 1822 (basis of record)
Cyclostoma tamsianum L. Pfeiffer, 1850 accepted as Cyclostoma plicatulum L. Pfeiffer, 1846 accepted as Gouldipoma plicatulum (L. Pfeiffer, 1846) (original description)
Cyclostoma tentorium L. Pfeiffer, 1850 accepted as Arenabbottella tentorium (L. Pfeiffer, 1850) (original description)
Cylindrella cinerea L. Pfeiffer, 1850 accepted as Torrecoptis cinerea (L. Pfeiffer, 1850) (original description)
Cylindrella dominicensis L. Pfeiffer, 1850 accepted as Brachypodella dominicensis (L. Pfeiffer, 1850) (original description)
Cylindrella monilifera L. Pfeiffer, 1850 accepted as Autocoptis monilifera (L. Pfeiffer, 1850) (original description)
Cylindrella salleana L. Pfeiffer, 1850 accepted as Amphicosmia salleana (L. Pfeiffer, 1850) (original description)
Gibbus obtusus L. Pfeiffer, 1850 (original description)
Helicina succinea L. Pfeiffer, 1850 accepted as Alcadia succinea (L. Pfeiffer, 1850) (original description)
Helicina versicolor L. Pfeiffer, 1850 accepted as Helicina viridis Lamarck, 1822 (original description)
Helix bajadera L. Pfeiffer, 1850 accepted as Ariophanta ammonia (Deshayes, 1850) (original description)
Helix callifera L. Pfeiffer, 1850 accepted as Hiona callifera (L. Pfeiffer, 1850) (original description)
Helix ceylanica L. Pfeiffer, 1850 accepted as Ariophanta bistrialis var. ceylanica (L. Pfeiffer, 1850) (original description)
Helix clathratula L. Pfeiffer, 1850 accepted as Ruthvenia clathratula (L. Pfeiffer, 1850) (original description)
Helix crassa L. Pfeiffer, 1850 accepted as Codringtonia neocrassa Zilch, 1952 accepted as Neocrassa neocrassa (Zilch, 1952) (original description)
Helix disculus L. Pfeiffer, 1850 accepted as Hiona exaequata (A. Gould, 1846) (original description)
Helix distincta L. Pfeiffer, 1850 accepted as Hemiplecta distincta (L. Pfeiffer, 1850) (original description)
Helix dominicensis L. Pfeiffer, 1850 accepted as Hispaniolana dominicensis (L. Pfeiffer, 1850) (original description)
Helix epixantha L. Pfeiffer, 1850 accepted as Bradybaena similaris (A. Férussac, 1822) (original description)
Helix erythrostoma Beck, 1837 accepted as Theba subdentata helicella (W. Wood, 1828) (basis of record)
Helix flora L. Pfeiffer, 1850 accepted as Mesomphix flora (L. Pfeiffer, 1850) (original description)
Helix fortunei L. Pfeiffer, 1850 accepted as Bradybaena fortunei (L. Pfeiffer, 1850) (original description)
Helix gigas L. Pfeiffer, 1850 (original description)
Helix gigaxii L. Pfeiffer, 1847 accepted as Backeljaia gigaxii (L. Pfeiffer, 1847) (basis of record)
Helix gunnii L. Pfeiffer, 1850 accepted as Rhytida greenwoodi (J. E. Gray, 1850) (original description)
Helix gypsacea L. Pfeiffer, 1850 accepted as Asperitas trochus (O. F. Müller, 1774) (original description)
Helix juno L. Pfeiffer, 1850 accepted as Isomeria juno (L. Pfeiffer, 1850) (original description)
Helix koreana L. Pfeiffer, 1850 accepted as Fruticicola koreana (L. Pfeiffer, 1850) (original description)
Helix loxodon L. Pfeiffer, 1850 accepted as Plagioptycha loxodon (L. Pfeiffer, 1850) (original description)
Helix loxotropis L. Pfeiffer, 1850 accepted as Planispira loxotropis (L. Pfeiffer, 1850) (original description)
Helix margaritis L. Pfeiffer, 1850 accepted as Planispira margaritis (L. Pfeiffer, 1850) (original description)
Helix moluccensis L. Pfeiffer, 1850 accepted as Planispira moluccensis (L. Pfeiffer, 1850) (original description)
Helix oleosa L. Pfeiffer, 1850 accepted as Thapsia oleosa (L. Pfeiffer, 1850) (original description)
Helix pallasiana L. Pfeiffer, 1850 accepted as Mandarina pallasiana (L. Pfeiffer, 1850) (original description)
Helix scheepmakeri L. Pfeiffer, 1850 accepted as Planispira scheepmakeri (L. Pfeiffer, 1850) accepted as Pseudopapuina scheepmakeri (L. Pfeiffer, 1850) (original description)
Helix schumacheriana L. Pfeiffer, 1850 accepted as Hemiplecta densa schumacheriana (L. Pfeiffer, 1850) accepted as Hemiplecta densa (A. Adams & Reeve, 1850) (original description)
Helix setubalensis L. Pfeiffer, 1850 accepted as Xeroplexa setubalensis (L. Pfeiffer, 1850) (original description)
Helix sieboldtiana L. Pfeiffer, 1850 accepted as Acusta sieboldtiana (L. Pfeiffer, 1850) (original description)
Helix superba L. Pfeiffer, 1850 accepted as Acavus superbus (L. Pfeiffer, 1850) (original description)
Helix trichotropis L. Pfeiffer, 1850 accepted as Plectotropis trichotropis (L. Pfeiffer, 1850) (original description)
Helix tunetana L. Pfeiffer, 1850 accepted as Sphincterochila tunetana (L. Pfeiffer, 1850) (original description)
Helix zebra L. Pfeiffer, 1850 accepted as Planispira zebra (L. Pfeiffer, 1850) (original description)
Succinea brevis Dunker, 1850 (additional source)
Succinea gouldiana L. Pfeiffer, 1850 (original description)
Succinea papillata L. Pfeiffer, 1850 (original description)
Succinea tamsiana L. Pfeiffer, 1850 (original description)
Trochatella elegantula L. Pfeiffer, 1850 (original description)

Hispaniola for Cyclostoma tentorium L. Pfeiffer, 1850 
Marquesas Islands for Helix callifera L. Pfeiffer, 1850 
Portugal for Helix setubalensis L. Pfeiffer, 1850