hippea alviniae hippea alviniae hippea alviniae is a thermoacidophilic and obligately anaerobic bacterium from the genus of hippea which has been isolated from a hydrothermal vent from the east pacific rise. hippea alviniae scientific classification domain: bacteria phylum: campylobacterota class: desulfurellia order: desulfurellales family: desulfurellaceae genus: hippea species: h. alviniae binomial name hippea alviniaeflores et al. 2012 type strain dsm 24586, ep5-r, ocm 986