The genus Aeromonas belongs to the family Aeromonadaceae and the class of γ-roteobacteria. The identification of some species is problematic because the classification into phenotypic groups on the basis of conventional biochemical tests differs from that obtained in genetic groups. Given this situation, the purpose of our study was to identify 108 strains of Aeromonas original clinical, biochemical basis, through the system Omnilog