Amastra

Amastra is a genus of small air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Amastridae.

This genus is endemic to the Hawaiian Islands.

Many of the species in this genus have become extinct in recent times.

Species
Species within the genus Amastra include:
 * † Amastra albolabris
 * Amastra anthonii W. Newcomb, 1861
 * † Amastra cornea
 * † Amastra crassilabrum
 * Amastra cyclostoma (Baldwin, 1895)
 * Amastra cylindrica
 * Amastra delicata C. M. Cooke, 1933
 * Amastra dwightii C. M. Cooke, 1933
 * † Amastra elongata
 * † Amastra forbesi
 * † Amastra globosa C. M. Cooke, 1933
 * Amastra gulickiana A. Hyatt & H.A. Pilsbry, 1911
 * Amastra implicata C. M. Cooke, 1933
 * Amastra inopinata C. M. Cooke, 1933
 * Amastra juddii C. M. Cooke, 1917
 * Amastra kauaiensis (Newcomb, 1860)
 * Amastra micans
 * Amastra nannodes C. M. Cooke, 1933
 * Amastra nubilosa (Mighels, 1845)
 * Amastra nucleola (Gould, 1845)
 * Amastra obesa (Newcomb, 1853)
 * Amastra oswaldi C. M. Cooke, 1933
 * † Amastra ovatula C. M. Cooke, 1933
 * † Amastra pellucida
 * † Amastra porcus
 * Amastra problematica C. M. Cooke, 1933
 * † Amastra reticulata
 * Amastra rubens (Gould, 1845)
 * Amastra rugulosa Pease, 1870
 * Amastra spirizona (Quoy & Gaimard, 1825)
 * † Amastra subrostrata (L. Pfeiffer, 1859)
 * † Amastra subsoror Hyatt & Pilsbry, 1911
 * † Amastra tenuispira
 * Amastra textilis (Férussac, 1825)
 * Amastra tristis (Quoy & Gaimard, 1825)
 * † Amastra umbilicata
 * Amastra variegata (L. Pfeiffer 1849)
 * Taxa inquirenda:
 * Amastra amboinensis E. A. Smith, 1873
 * Amastra citrea Sykes, 1896
 * Amastra fraterna Sykes, 1896
 * Amastra longa Sykes, 1896
 * Amastra villosa Sykes, 1896