Mycobacterium celatum is a species of the phylum Actinomycetota (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus Mycobacterium. Type strain: strain ATCC 51131 = CCUG 39185 = CDC 90-0899 = CIP 106109 = DSM 44243 = JCM 12373.