Represent the batches 2 of strain NCTC 3991 and NCTC 3992 B. coagulans?

In a previous publication (M. Hartung and E. Hellmann: Examination of 20 Bacillus Species by Crossed Immunoelectrophoresis under Taxonomic Aspects, Zbl. Bakt. Hyg. A 263 (1987) 509-524) we came to the conclusion that the species B. subtilis and B. coagulans were closely related. This statement has to be revised: The antigenic relationship is low. Further investigations have shown that all three B. coagulans-strains, although originating from different sources, were overgrown by B. subtilis. The same fact may have caused errors in other publications (e.g. Parry et al.: A Colour Atlas of Bacillus Species, Wolfe Medical Publications Ltd., London, 1983.