haloparvum haloparvum haloparvum (common abbreviation hpv.) is a genus of halophilic archaea in the family of haloferacaceae. haloparvum scientific classification domain: archaea kingdom: euryarchaeota class: halobacteria order: haloferacales family: haloferacaceae genus: haloparvumchen et al. 2016 species h. alkalitolerans h. sedimenti