A host-specific lineage of a brood parasite species.^([W])
A legally defined unit of Roman society, being a collection of people related through a common ancestor by birth, marriage or adoption, possibly over many generations, and sharing the same nomen gentilicium.
A tribal subgroup whose members are characterized by having the same descent, usually along the male line.
A superfamily of animals or plants.
A branch of a family.
A progenitor of a branch of a family.