The bacteria belong to the family Chromatiaceae in the Gammaproteobacteria .
Are close relatives of similar symbionts from oligochaete worms Olavius algarvensis , Inanidrilus leukodermatus , and symbionts from the nematode subfamily Stilbonematinae ( Desmodoridae ) .
The bacteria belong to the family Chromatiaceae in the Gammaproteobacteria , and are close relatives of similar symbionts from oligochaete worms Olavius algarvensis , Inanidrilus leukodermatus , and symbionts from the nematode subfamily Stilbonematinae ( Desmodoridae ) .