Platybelone argalus pterura is the scientific name for the Atlantic needlefish species. The term Platynemis limbalis and Belone acus are the synonyms of Platybelone argalus pterura. These names refer to the same species and are interchangeable with the scientific name. The Atlantic needlefish is a slender, elongated fish that has a silvery body and a long pointed beak-like jaw, which is used to catch small fish and invertebrates. This fish is found in warm coastal waters from Nova Scotia to Brazil, and it is a migratory species. It is commonly known for its ability to jump out of the water and for the spine located on the first dorsal fin, which is used as a defense mechanism.