sentences:  It is the most common of all hammerheads.The scalloped hammerhead was first named "Zygaena lewini" and then renamed "Sphyrna lewini" by Edward Griffith and Hamilton Smith in 1834.It has also been named "Cestracion leeuwenii" by Day in 1865, "Zygaena erythraea" by Klunzinger in 1871, "Cestracion oceanica" by Garman in 1913, and "Sphyrna diplana" by Springer in 1941.