flying fish
Ambiguous tag, currently being used for:
- fish that appear to be in flight, i.e., the scene is not underwater but the fish are depicted as if swimming;
- Its pixiv tag is 空の魚 (Fish in the Sky) and the pixpedia article is here.
- a family of marine fish with enlarged pectoral fins that enable them to glide for short distances above water.
References
- Wikipedia: Flying fish