marivita cryptomonadis marivita cryptomonadis marivita cryptomonadis is a gram-negative, strictly aerobic and rod-shaped bacterium from the genus of marivita which has been isolated from the phytoplankton cryptomonas from seawater in korea. marivita cryptomonadis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: marivita species: m. cryptomonadis binomial name marivita cryptomonadishwang et al. 2009 type strain jcm 15447, kccm 90070, cl-sk44