unclassified Gammaproteobacteriabacterium endosymbiont of Pedicinus badiiBathymodiolus platifrons methanotrophic gill symbiontmethane-oxidizing endosymbiont of Gigantopelta aegisendosymbiont of Euscepes postfasciatusendosymbiont of unidentified scaly snail isolate Monjumethanotrophic endosymbiont of Bathymodiolus puteoserpentis (Logatchev)Bathymodiolus platifrons methanotrophic gill symbiontBathymodiolus japonicus methanotrophic gill symbiont