Wedgefishes or sharkfin-guitarfishes are the common names for the members of the Rhynchobatinae, a subfamily for the Rhinobatidae (Guitarfishes) family. They have a wing-like pectoral disc similar to the stingrays, and sharks body. They are distinguished by their falcate shark-like shape dorsal fins, where their first dorsal fin originates above the pelvic fins.
Members of the Rhynchobatinae are found in the tropical continental seas of the eastern hemisphere. There is a single known genus and 9 species worldwide. They can be found from the seashore to a depth of at least 64 m, occurring on soft bottom in estuaries, lagoons, and enclosed and open bays. These fishes are strong but slow swimmers. They are commonly found near the bottom but often swimming well above it or near the surface. All species are live-bearing. They feed on benthic invertebrates and are inoffensive to human.