Molecular genetic analysis supports Amoebozoa as a monophyletic clade. A phylogenetic study suggests the Polyplacophora form a clade with a monophyletic Aplacophora. It is usually implicitly assumed that species are monophyletic (or at least paraphyletic). Molecular phylogenetic analysis confirms that the Coleoptera are monophyletic. The Platyhelminthes is a clade consisting of two monophyletic groups, Catenulida and Rhabditophora. Like caviomorph rodents, South American monkeys are believed to be a clade (i.e., monophyletic). Rhizaria has been supported by molecular phylogenetic studies as a monophyletic group. The arrangement of the members of a monophyletic group is called a monophyly. The traditional Malvaceae "sensu stricto" comprise a very homogeneous and cladistically monophyletic group. Bees are a monophyletic lineage within the superfamily Apoidea. Twelve species belong to the monophyletic "true foxes" group of genus "Vulpes". However the subgenera do not appear to be monophyletic. It is uncertain whether the phylum is monophyletic. The core eudicots are a monophyletic group. Baleen whales belong to a monophyletic lineage of Mysticeti.