Abstract
On the basis of morphological, physiological and genotypic properties Blastobacter viscosus 7d and Blastobacter aminooxidans 14a are proposed as new species of the genus Xanthobacter, Xanthobacter viscosus (type strain 7dT =VKM B-2253T =ATCC BAA-298T) and Xanthobacter aminoxidans corrig. (type strain 14aT =VKM B-2254T =ATCC BAA-299T).