Amastra micans L. Pfeiffer, 1859 Hawaii, Oahu
Amastra mirabilis C.M. Cooke, 1917 Hawaii
Amastra modesta (C.B. Adams, 1851) Hawaii
Amastra modicella C.M. Cooke, 1917 Hawaii
Amastra moesta (W. Newcomb, 1854) Hawaii
Amastra montagui H.A. Pilsbry, 1913 Hawaii
Amastra montana D.D. Baldwin, 1906 Hawaii
Amastra montivaga C.M. Cooke, 1917 Hawaii
Amastra morticina A. Hyatt & H.A. Pilsbry,1911 Hawaii
Amastra mucronata (W. Newcomb, 1853) Hawaii
Amastra nana D.D. Baldwin, 1895 Hawaii
Amastra nannodes C.M. Cooke, 1933 Hawaii
Amastra neglecta H.A. Pilsbry& C.M. Cooke, 1914 Hawaii
Amastra nigra W. Newcomb, 1855 Hawaii
Amastra nubifera A. Hyatt & H.A. Pilsbry,1911 Hawaii
Amastra nubigena H.A. Pilsbry& C.M. Cooke, 1914 Hawaii
Amastra nubilosa (J.W. Mighels, 1845) Hawaii17 mm
Amastra nucleola (A.A. Gould, 1854) Hawaii
Amastra nucula E.A. Smith, 1873 Hawaii
Amastra obesa (W. Newcomb, 1853) Hawaii
Amastra obesa aurora H.A. Pilsbry& C.M. Cooke, 1914 Hawaii8 mm
Amastra oswaldi C.M. Cooke, 1933 Hawaii
Amastra ovatula C.M. Cooke, 1933 Hawaii
Amastra pagodula C.M. Cooke, 1917 Hawaii
Amastra paulula C.M. Cooke, 1917 Hawaii
Amastra peasei E.A. Smith, 1873 Hawaii
Amastra pellucida D.D. Baldwin, 1895 Hawaii
Amastra perversa A. Hyatt & H.A. Pilsbry,1911 Hawaii
Amastra petricola W. Newcomb, 1855 Hawaii
Amastra platyla (C.M.F. Ancey, 1889) Hawaii
Amastra porcus A. Hyatt & H.A. Pilsbry,1911 Hawaii
Amastra porphyrea (W. Newcomb, 1853) Hawaii16 mm
Amastra porphyrostoma W.H. Pease, 1869 Hawaii
Amastra praeopima C.M. Cooke, 1917 Hawaii
Amastra problematica C.M. Cooke, 1933 Hawaii