halteriidae halteriidae halteriidae is a family of planktonic ciliates. halteriidae scientific classification domain: eukaryota clade: diaphoretickes clade: sar clade: alveolata phylum: ciliophora class: oligotrichea order: halteriida family: halteriidaeclaparède & lachmann, 1859 genus halteria dujardin, 1841 pelagohalteria foissner, skogstad & pratt, 1988