Aka de Laubenfels, 1936

Aka brevitubulata (Pang, 1973)

Aka cachacrouensis (Rützler, 1971)

Aka coralliirubri Calcinai, Cerrano & Bavestrello, 2007

Aka coralliphaga (Rützler, 1971)

Aka cryptica Carballo, Hepburn, Nava, Cruz-Barraza & Bautista-Guerrero, 2007

Aka densa (Schmidt, 1870)

Aka diagonoxea Thomas, 1968

Aka infesta (Johnson, 1889)

Aka insidiosa (Johnson, 1899)

Aka labyrinthica (Hancock, 1849)

Aka maldiviensis Calcinai, Cerrano, Sarà & Bavestrello, 2000

Aka microterebrans Calcinai, Cerrano & Bavestrello, 2007

Aka minuta Thomas, 1973

Aka mucosa (Bergquist, 1965)

Aka nodosa (Hancock, 1849)

Aka paratypica Fromont, 1993

Aka ruetzleri Calcinai, Cerrano & Bavestrello, 2007

Aka siphona (de Laubenfels, 1949)

Aka terebrans (Schmidt, 1870)

Aka trachys de Laubenfels, 1954

Aka xamaycaense (Pulitzer-Finali, 1986)