The myxobacteria ("slime bacteria") are a group of bacteria that usuallly live in the soil. They feed on insoluble organic substances. They have very large genomes compared to other bacteria. Myxobacteria are included in the delta group of proteobacteria, a large group of Gram-negative forms.
Myxobacteria move by gliding on the surface. They travel in swarms with many cells kept together by intercellular molecular signals. The swarm puts out extracellular enzymes to digest food. This increases feeding efficiency.