“…nov., polyphasic taxonomy As some nocardiae cause a variety of suppurative diseases in humans and animals, notably actinomycete mycetoma and nocardiosis (Boiron et al, 1993 ;Schaal & Lee, 1992 ;Tsukamura, 1982), it is important to differentiate the nocardiae to species level. Nocardia brasiliensis and Nocardia transvalensis are the main causal agents of actinomycete mycetoma (McNeil & Brown, 1994 ;McNeil et al, 1992), and the predominant agents of nocardiosis are Nocardia asteroides, Nocardia farcinica and Nocardia nova (Schaal & Lee, 1992 ;Wallace et al, 1991). Nocardia seriolae (Kudo et al, 1988) and Nocardia salmonicida (Isik et al, 1999) .…”