gen. nov., sp. nov., a novel bacterium isolated from the brain of the squid, and reclassification of two species as comb. nov. and comb. nov.

A Gram-stain-positive, non-motile, mesophilic, aerobic, coccus-shaped bacterium, designated strain Y7R2, was isolated from the brain of a squid living in mesopelagic water near Muroto, Kochi, Japan. Phylogenetic analyses based on 16S rRNA gene sequences showed that the strain was most closely related to the genus (96.1 % similarity to the type strain of the type species ) and formed a separate distinct cluster in a stable, deep-branching lineage with the type strains of and (98.