A new Moraxella species, Moraxella osloensis, and a revised description of Moraxella nonliquefaciens

Organisms corresponding to the description of Moraxella nonliquefaciens can be subdivided into several taxa. A subgroup with comparatively fastidious growth requirements is retained in the species M. nonliquefaciens, and a revised description of this species is given. The strain 4663/62 is proposed as a neotype strain. A second, more robust subgroup is described and given the name M. osloensis. The strain A 1920 is designated as the type strain. The use in taxonomy of such criteria as DNA base composition and compatibility in transformation is briefly discussed.