- Spheniscidae, family Spheniscidae - comprising all existing penguins
--1 is a kind of bird family
--1 is a member of Sphenisciformes, order Sphenisciformes
--1 has members:penguin; Pygoscelis, genus Pygoscelis; Aptenodytes, genus Aptenodytes; Spheniscus, genus Spheniscus; Eudyptes, genus Eudyptes