acidomonas acidomonas acidomonas is a genus in the phylum pseudomonadota (bacteria). the genus contains single species, namely a. methanolica, formerly known as acetobacter methanolicus acidomonas scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodospirillales family: acetobacteraceae genus: acidomonas type species a. methanolica etymology the name acidomonas derives from:latin adjective acidus, sour, acid; latin feminine gender noun monas (μονάς), nominally meaning "a unit", but in effect meaning a bacterium; neo-latin feminine gender noun acidomonas, acidophilic monad. the specific epithet methanolica derives from neo-latin neuter gender noun methanol, methanol; latin suff. -icus -a -um, suffix used in adjectives with the sense of belonging to; neo-latin feminine gender adjective methanolica, relating to methanol. members of the genus acidomonas can be referred to as acidomonad (viz. trivialisation of names).