1. species: Aculus xylostei (Canestrini, 1892)

    Taxon group: acarine (Acari)

    Aculus xylostei
    Aculus xylostei (Canestrini, 1892)

  2. species: Closterium acutum Bréb. in Ralfs, 1848

    Taxon group: alga

    Closterium acutum
    Closterium acutum Bréb. in Ralfs, 1848

  3. species: Aculus tetanothrix (Nalepa, 1889)

    Taxon group: acarine (Acari)

    Aculus tetanothrix
    Aculus tetanothrix (Nalepa, 1889)

  4. species: Lagenorhynchus albirostris (Gray, 1846)  – White-beaked Dolphin

    White-beaked Dolphin, White-Beaked Dolphin

    Lagenorhynchus albirostris
    Lagenorhynchus
    Lagenorhynchus albirostris (Gray, 1846)

  5. species: Didymodon acutus (Brid.) K.Saito  – Pointed Beard-moss

    Taxon group: moss

    Didymodon acutus
    Didymodon acutus (Brid.) K.Saito

  6. species: Cortinarius acutus (Pers.) Fr.  – Peaked Webcap

    Taxon group: fungus

    Cortinarius acutus (Pers.) Fr.
    Cortinarius acutus

  7. species: Aprionus acutus Edwards, 1938

    Taxon group: insect - true fly (Diptera)

    Aprionus acutus
    Aprionus acutus Edwards, 1938

  8. species: Psilachnum acutum (Velen.) Raitv.

    Taxon group: fungus

    Psilachnum acutum
    Psilachnum acutum (Velen.) Raitv.

  9. species: Pleurophragmium acutum (Grove) M.B. Ellis

    Taxon group: fungus

    Pleurophragmium acutum (Grove) M.B. Ellis
    Pleurophragmium acutum

  10. species: Bactridium acutum Berk. & F.B. White

    Taxon group: fungus

    Bactridium acutum
    Bactridium acutum Berk. & F.B. White