1. species: Aculus kochi (accepted name Aculus kochi)

    Aculus kochi

  2. species: Aculus scutellariae (accepted name Aculus scutellariae)

    Aculus scutellariae

  3. species: Aculus anthobius (accepted name Aculus anthobius)

    Aculus anthobius

  4. species: Corophium acutum Chevreux, 1908 (accepted name Apocorophium acutum)

    Corophium acutum
    Corophium acutum Chevreux, 1908

  5. species: Pleurophragmium acutum (accepted name Pleurophragmium acutum)

    Pleurophragmium acutum

  6. species: Bactridium acutum Berk. & White{?} (accepted name Bactridium acutum)

    Bactridium acutum
    Bactridium acutum Berk. & White{?}

  7. species: Aculus magnirostris (accepted name Aculus magnirostris)

    Aculus magnirostris

  8. species: Hypericum acutum Moench (accepted name Hypericum tetrapterum)

    Hypericum acutum Moench
    Hypericum acutum

  9. species: Aculus fockeui (accepted name Aculus fockeui)

    Aculus fockeui

  10. species: Closterium acutum (accepted name Closterium acutum)

    Closterium acutum