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Hydrida

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Phylum: Cnidaria
Classis: Hydrozoa
Ordo: Hydroida
Subordo: Hydrida
Familiae: Armorhydridae - Hydridae - Protohydridae

Biology Encyclopedia

Cnidaria Images

Source: Wikispecies: All text is available under the terms of the GNU Free Documentation License