- genus Clostridium - anaerobic or micro-aerophilic rod-shaped or spindle-shaped saprophytes; nearly cosmopolitan in soil, animal intestines, and dung
--1 is a kind of bacteria genus
--1 is a member of Bacillaceae, family Bacillaceae
--1 has members:clostridium, clostridia; botulinus, botulinum, Clostridium botulinum; clostridium perfringens