Modulus Gray, 1842

Modulus ambiguus Dautzenberg, 1910

Modulus basteroti

Modulus bayeri Petuch, 2001

Modulus bermontianus Petuch, 1994

Modulus calusa Petuch, 1988

Modulus carchedonius (Lamarck, 1822)

Modulus catenulatus (Philippi, 1849)

Modulus cerodes (A. Adams, 1851)

Modulus disculus Philippi, 1846

Modulus floridanus Conrad, 1869

Modulus guernei Dautzenberg, 1900

Modulus kaicherae Petuch, 1987

Modulus lindae Petuch, 1987

Modulus modulus (Linnaeus, 1758)

Modulus nodosus Macsotay & Campos, 2001

Modulus obtusatus (Philippi, 1846)

Modulus pacei Petuch, 1987

Modulus tamanensis

Modulus tectum (Gmelin, 1791)