Sterna
Aves | Charadriiformes | Laridae | Sterna | Sterna sp.
Elona
Biota | Animalia | Mollusca | Gastropoda | Heterobranchia | Euthyneura | Tectipleura | Eupulmonata | Stylommatophora | Helicina | Helicoidei | Helicoidea | Elonidae | Eloninae | Elona
|  |  | Cuvier, 1795 | Burmeister, 1837 |  |  | Haszprunar & Huber, 1990 | A. Schmidt, 1855 | Rafinesque, 1815 |  | Rafinesque, 1815 | E. Gittenberger, 1977 | E. Gittenberger, 1977 | H. Adams & A. Adams, 1855