pelomonas pelomonas pelomonas is a genus of gram-negative, rod-shaped, non-spore-forming bacteria from the family comamonadaceae, which were isolated from haemodialysis water. pelomonas scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: pelomonasxie and yokota 2005 type species pelomonas saccharophila species pelomonas aquatica pelomonas puraquae pelomonas saccharophila