aquabacter spiritensis aquabacter spiritensis aquabacter spiritensis is a bacterium from the genus of aquabacter which was isolated from the spirit lake in washington in the united states. aquabacter spiritensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: xanthobacteraceae genus: aquabacter species: a. tetraedrale binomial name aquabacter spiritensisirgens et al. 1993 type strain atcc 43981, dsm 9035, lmg 8611, spl-1