myxobacter vs true bacteria

myxobacter and true bacteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
myxobacter	Yes	No	No	No
true bacteria	Yes	No	No	No

As nouns, true bacteria is a hypernym of myxobacter; that is, true bacteria is a word with a broader meaning than myxobacter:

myxobacter: bacteria that form colonies in self-produced slime; inhabit moist soils or decaying plant matter or animal waste
true bacteria: a large group of bacteria having rigid cell walls; motile types have flagella

Other hypernyms of myxobacter include eubacteria, eubacterium.

myxobacter (noun)	true bacteria (noun)
bacteria that form colonies in self-produced slime; inhabit moist soils or decaying plant matter or animal waste	a large group of bacteria having rigid cell walls; motile types have flagella