Mycoplasmas were isolated from multiple tissues of diseased American alliga
tors (Alligator mississippiensis). This paper presents biochemical, serolog
ical and molecular genetic characterizations of a lethal pathogen of alliga
tors for which the name Mycoplasma alligatoris sp, nov. is proposed. The ty
pe strain is A21JP2(T) (ATCC 700619(T)).