• Alaba (Diala) A. Adams, 1861 accepted as Diala A. Adams, 1861
• Alaba (Diala) albugo R. B. Watson, 1886 accepted as Diala albugo (R. B. Watson, 1886)
• Alaba (Diala) lauta A. Adams, 1862 accepted as Diala suturalis (A. Adams, 1853)
• Alaba (Diala) leithii E. A. Smith, 1876 accepted as Mainwaringia leithii (E. A. Smith, 1876)
• Alaba (Diala) rufilabris A. Adams, 1862 accepted as Tatea rufilabris (A. Adams, 1862)
• Alaba (Diala) sulcifera A. Adams, 1862 accepted as Diala sulcifera (A. Adams, 1862)
• Alaba (Diala) suturalis (A. Adams, 1853) accepted as Diala suturalis (A. Adams, 1853)
• Diala A. Adams, 1861
• Diala acuta P. P. Carpenter, 1864 accepted as Pseudodiala acuta (P. P. Carpenter, 1864)
• Diala africana Bartsch, 1915 accepted as Hydrobiidae incertae sedis africana Bartsch, 1915
• Diala albugo (R. B. Watson, 1886)
• Diala almo Bartsch, 1915 accepted as Hydrobiidae incertae sedis almo (Bartsch, 1915)
• Diala angustifera Nomura, 1935 † (uncertain > taxon inquirendum)
• Diala basispiralis (Grant-Mackie & Chapman-Smith, 1971) † accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala cacumenata Laseron, 1956 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala capensis Bartsch, 1915 accepted as Diala jordani Tomiln, 1939 accepted as Hydrobiidae incertae sedis jordani (Tomlin, 1939)
• Diala capensis G. B. Sowerby III, 1889 accepted as Alaba pinnae (Krauss, 1848)
• Diala cento Laseron, 1956 accepted as Diala suturalis (A. Adams, 1853)
• Diala cingulifera W. H. Turton, 1932 accepted as Eatoniella cingulifera (W. H. Turton, 1932)
• Diala conica W. H. Turton, 1932 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala conspicua Laseron, 1956 accepted as Diala albugo (R. B. Watson, 1886)
• Diala convexa W. H. Turton, 1932 accepted as Hydrobiidae incertae sedis convexa (W. H. Turton, 1932)
• Diala cornea A. Adams, 1861 accepted as Alaba cornea (A. Adams, 1861)
• Diala diffilata Laseron, 1956 accepted as Alaba diffilata (Laseron, 1956)
• Diala dubia G. B. Sowerby III, 1892 accepted as Hydrobiidae incertae sedis dubia (G. B. Sowerby III, 1892)
• Diala dubia var. elongata W. H. Turton, 1932 accepted as Hydrobiidae incertae sedis elongata (W. H. Turton, 1932)
• Diala electra Lozouet, 1998 †
• Diala electrina P. P. Carpenter, 1864 accepted as Lirobarleeia electrina (P. P. Carpenter, 1864)
• Diala exilis (Tryon, 1866)
• Diala flammea (Pease, 1868) accepted as Diala sulcifera sulcifera (A. Adams, 1862)
• Diala fossa Laseron, 1956 accepted as Diala sulcifera sulcifera (A. Adams, 1862)
• Diala fragilis (Fenaux, 1943) (uncertain > taxon inquirendum)
• Diala fragilis Thiele, 1930 accepted as Alaba fragilis (Thiele, 1930)
• Diala fuscopicta E. A. Smith, 1890 accepted as Barleeia fuscopicta (E. A. Smith, 1890)
• Diala hardyi Melvill & Standen, 1895 accepted as Diala sulcifera sulcifera (A. Adams, 1862)
• Diala hardyi var. prolongata Melvill & Standen, 1895 accepted as Diala sulcifera sulcifera (A. Adams, 1862)
• Diala hartmeyeri Thiele, 1930 accepted as Alaba hartmeyeri (Thiele, 1930)
• Diala infrasulcata G. B. Sowerby III, 1892 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala jordani Tomiln, 1939 accepted as Hydrobiidae incertae sedis jordani (Tomlin, 1939)
• Diala kraussi W. H. Turton, 1932 accepted as Hydrobiidae incertae sedis kraussi (W. H. Turton, 1932)
• Diala lara W. H. Turton, 1932 accepted as Pisinna lara (W. H. Turton, 1932)
• Diala lauta (A. Adams, 1862) accepted as Diala suturalis (A. Adams, 1853)
• Diala leithii (E. A. Smith, 1876) accepted as Mainwaringia leithii (E. A. Smith, 1876)
• Diala leucosticta A. Adams, 1861 accepted as Alaba leucosticta (A. Adams, 1861)
• Diala lirata H. Adams & A. Adams, 1864 (uncertain > taxon inquirendum)
• Diala lirata Laseron, 1950 accepted as Diffalaba opiniosa Iredale, 1936
• Diala lirulata Thiele, 1930
• Diala ludens Melvill & Standen, 1895 accepted as Diala albugo (R. B. Watson, 1886)
• Diala macula G. Nevill, 1885 accepted as Diala varia A. Adams, 1861 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala magna Tate, 1891 accepted as Diala suturalis (A. Adams, 1853)
• Diala marmorea P. P. Carpenter, 1864 accepted as Pseudodiala acuta (P. P. Carpenter, 1864)
• Diala megapicalis Ponder & de Keyzer, 1992
• Diala michaelseni Thiele, 1930 accepted as Styliferina michaelseni (Thiele, 1930)
• Diala monile A. Adams, 1862 accepted as Alaba monile A. Adams, 1862
• Diala monile isidis Thiele, 1930 accepted as Alaba monile A. Adams, 1862
• Diala nodicincta H. Adams & A. Adams, 1864 (uncertain > taxon inquirendum)
• Diala picta A. Adams, 1861 accepted as Alaba picta (A. Adams, 1861)
• Diala pinnae (Krauss, 1848) accepted as Alaba pinnae (Krauss, 1848)
• Diala planalba Laseron, 1956 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala polita Preston, 1905 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala polyaulax Tomlin, 1923 accepted as Alaba polyaulax (Tomlin, 1923)
• Diala premeris Laseron, 1956 accepted as Diala sulcifera sulcifera (A. Adams, 1862)
• Diala profunda Hedley, 1899 accepted as Mellitestea profunda (Hedley, 1899)
• Diala punctata Tenison Woods, 1876 accepted as Diala suturalis (A. Adams, 1853)
• Diala pusilla Thiele, 1930
• Diala scitula W. H. Turton, 1932 accepted as Hydrobiidae incertae sedis scitula (W. H. Turton, 1932)
• Diala scopulorum (R. B. Watson, 1886) accepted as Mellitestea scopulorum (R. B. Watson, 1886)
• Diala semipellucida Preston, 1905 accepted as Alaba semipellucida (Preston, 1905)
• Diala semistriata (R. A. Philippi, 1849)
• Diala simplex E. A. Smith, 1875 accepted as Barleeia simplex (E. A. Smith, 1875)
• Diala stephensae (F. Baker, G. D. Hanna & A. M. Strong, 1930)
• Diala stricta T. Habe, 1960 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala subcarinata Murdoch & Suter, 1906 accepted as Aclis subcarinata (Murdoch & Suter, 1906)
• Diala succincta A. Adams, 1870 (uncertain > unassessed)
• Diala sulcifera (A. Adams, 1862)
• Diala sulcifera martensi (Issel, 1869)
• Diala sulcifera scobina (Laseron, 1950)
• Diala sulcifera sulcifera (A. Adams, 1862)
• Diala suturalis (A. Adams, 1853)
• Diala tenuis E. A. Smith, 1875 accepted as Styliferina tenuis (E. A. Smith, 1875)
• Diala tesselata Tenison Woods, 1876 accepted as Alaba monile A. Adams, 1862
• Diala tomlini Viader, 1938 accepted as Styliferina tomlini (Viader, 1938)
• Diala translucida Hedley, 1906 accepted as Styliferina translucida (Hedley, 1905)
• Diala trilirata Melvill, 1906 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala tumerosa Laseron, 1956 accepted as Mellitestea tumerosa (Laseron, 1956)
• Diala tumida Tenison Woods, 1876 accepted as Pisinna tumida (Tenison Woods, 1876)
• Diala turrita W. H. Turton, 1932 accepted as Assimineidae incertae sedis turrita (W. H. Turton, 1932)
• Diala turritella W. H. Turton, 1932 accepted as Assimineidae incertae sedis turritella (W. H. Turton, 1932)
• Diala varia A. Adams, 1861 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala vestigia Laseron, 1956 accepted as Diala semistriata (R. A. Philippi, 1849)
• Diala virgata Hedley, 1899 accepted as Diala albugo (R. B. Watson, 1886)
• Diala vitrea G. B. Sowerby III, 1915 accepted as Alaba picta (A. Adams, 1861)
• Diala watsoni Laseron, 1956 accepted as Diala semistriata (R. A. Philippi, 1849)
• Dialarchus Greeley, 1899 accepted as Oligocottus Girard, 1856
• Dialarchus snyderi Greeley, 1899