neptunomonas concharum neptunomonas concharum neptunomonas concharum is a species of bacteria. it is gram-negative, facultatively anaerobic, motile and rod-shaped, its type strain being lhw37t (=kacc 15543t =jcm 17730t). this species was first isolated from a dead ark clam, hence the specific epithet "concharum", meaning "of the shells". neptunomonas concharum scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: oceanospirillaceae genus: neptunomonas species: n. concharum binomial name neptunomonas concharumlee et al. 2012