Aperostoma leai P. Bartsch& J.P.E. Morrison, 1942
Fijiopoma liberata (A. Garrett, 1887) Fiji Islands, Viti Levu8 mm
Poteria lineata (E. Chitty, 1857) Jamaica
Dicrista liobasis F.G. Thompson, 1969 Mexico, Jalisco
Amphicyclotus liratus (H. Drouët, 1859) Martinique
Cyclochittya magister (P. Bartsch, 1942) Jamaica
Poteria magna E. Chitty, 1857 Jamaica
Amphicyclotus maleri J.C.H. Crosse& P.H. Fischer, 1883 Mexico, Tabasco
Aperostoma manabense C. de la Torre, P. Bartsch& J.P.E. Morrison, 1942 Ecuador30 mm
Poteria manchesterensis (P. Bartsch, 1942) Jamaica
Poteria marianna (P. Bartsch, 1942) Jamaica
Bartschivindex martensi (W. Kobelt, 1912) Jamaica
Poteria martensis (W. Kobelt, 1912) Jamaica23 mm
Buckleyia martinezi (J.G. Hidalgo, 1866) Ecuador
Incerticyclus martinicensis (R.J. Shuttleworth, 1857)
Amphicyclotus megaplanus J.P.E. Morrison, 1955 Chiapas, Mexico
Neocyclotus merrilli (P. Bartsch& J.P.E. Morrison, 1942) Brazil
Aperostoma mexicanum (K.T. Menke, 1830) Veracruz, Mexico
Amphicyclotus mineri P. Bartsch, 1942
Poteria minor (E. Chitty, 1857) Jamaica
Poteria montegoensis P. Bartsch, 1942 Jamaica
Cyclopomops moricandi (L. Pfeiffer, 1852) Brazil
Cyclobakeria nana P. Bartsch, 1942 Jamaica17,7 mm
Incidostoma nanun (P. Bartsch& J.P.E. Morrison, 1942) Venezuela
Aperostoma nicaraguense P. Bartsch& J.P.E. Morrison, 1942
Poteria niceforana H.A. Pilsbry, 1939
Calaperostoma nigrofasciatum (K. Miller, 1879) Ecuador41 mm
Poteria nodosa E. Chitty, 1857 Jamaica
Poteria notata E. Chitty, 1857 Jamaica
Cyclobakeria notatior (E. Chitty, 1857) Jamaica
Cyclobakeria novaespei (E. Chitty, 1857) Jamaica
Poteria novussaltus E. Chitty, 1857 Jamaica
Calacyclotus olssoni (H.A. Pilsbry, 1926) Panama
Poteria orcutti P. Bartsch, 1942 Jamaica
Aperostoma pailaense C. de la Torre, P. Bartsch& J.P.E. Morrison, 1942 Ecuador24 mm