1. species: Acrocephalus palustris (Bechstein, 1798)  – Marsh Warbler

    Taxon group: bird

    Acrocephalus palustris
    Acrocephalus
    Acrocephalus palustris (Bechstein, 1798)

  2. species: Proteocephalus macrocephalus (Creplin, 1825)

    Taxon group: tapeworm (Cestoda)

    Proteocephalus macrocephalus
    Proteocephalus macrocephalus (Creplin, 1825)

  3. species: Tetrabothrius macrocephalus (Rudolphi, 1810)

    Taxon group: tapeworm (Cestoda)

    Tetrabothrius macrocephalus
    Tetrabothrius macrocephalus (Rudolphi, 1810)

  4. species: Apletodon microcephalus (Brook, 1890)

    Taxon group: bony fish (Actinopterygii)

    Apletodon microcephalus (Brook, 1890)
    Apletodon microcephalus

  5. species: Achnanthidium macrocephalum (Hust.) Round et L. Bukht., 1996

    Taxon group: diatom

    Achnanthidium macrocephalum (Hust.) Round et L. Bukht., 1996
    Achnanthidium macrocephalum

  6. species: Calocephalus knappii (F. Muell.) Ewart & J.W. White

    Calocephalus knappii
    Calocephalus knappii (F. Muell.) Ewart & J.W. White

  7. species: Leontodon microcephalus (Boiss. ex DC.) Boiss.

    Taxon group: flowering plant

    Leontodon microcephalus
    Leontodon microcephalus (Boiss. ex DC.) Boiss.

  8. species: Ditrachybothridium macrocephalum Rees, 1959

    Taxon group: tapeworm (Cestoda)

    Ditrachybothridium macrocephalum Rees, 1959
    Ditrachybothridium macrocephalum

  9. species: Carduus macrocephalus Desf.  – Giant Thistle

    Taxon group: flowering plant

    Carduus macrocephalus Desf.
    Carduus macrocephalus

  10. species: Physeter macrocephalus Linnaeus, 1758  – Sperm Whale

    Taxon group: marine mammal

    Physeter macrocephalus
    Physeter macrocephalus Linnaeus, 1758