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| English | German |
| four-banded mining bee | viergürtlige Schmalbiene (Halictus quadricinctus) |
| four-bearded rockling | vierbärtelige Seequappe (Onos cimbrius) |
| four-eyed opossum | Vieraugenbeutelratte (Metachirops opossum) |
| four-eyed opossum | Quicka (Metachirops opossum) |
| four-spotted libellula | Vierflecklibelle (Libellula quadrimaculata) |
| four-stripe damsel | Vierbinden-Preußenfisch Dascyllus melanurus |