• Acradenia Kippist, 1853
• Acranella P.N. Kolosov, 1982 † (uncertain)
• Acrania Burr, 1915 (uncertain)
• Acrenesia Alencar & Azevedo, 2018
• Acrhelia Milne-Edwards & Haime, 1849 accepted as Galaxea Oken, 1815
• Acrohelia Milne Edwards, 1857 accepted as Galaxea Milne Edwards, 1857 accepted as Galaxea Oken, 1815
• Acronesia Hall, 1948
• Afrazelia Pierre, 1899 (uncertain)
• Arabelia Bosselaers, 2009
• Arcangelia P.A. Saccardo, 1890 accepted as Didymella Saccardo, 1880