aequorivita nionensis aequorivita nionensis aequorivita nionensis is a gram-negative, rod-shaped and non-motile bacterium from the genus of aequorivita which has been isolated from water from a hydrothermal vent from espalamaca in the azores. aequorivita nionensis scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: aequorivita species: a. nionensis binomial name aequorivita nionensis(rajasabapathy et al. 2015) hahnke et al. 2017 type strain kctc 32420, mcc 2354, vbw088 synonyms vitellibacter nionensis