ascidiaceihabitans ascidiaceihabitans ascidiaceihabitans is a gram-negative and aerobic genus of bacteria from the family of rhodobacteraceae with one known species (ascidiaceihabitans donghaensis). ascidiaceihabitans donghaensis has been isolated from the sea squirt halocynthia aurantium from the sea of japan in korea. ascidiaceihabitans scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: ascidiaceihabitanskim et al. 2014 type species ascidiaceihabitans donghaensis species a. donghaensis