5909 Megachasma pelagios Taylor, Compagno & Struhsaker, 1983 Megachasmidae Megamouth sharks Lamniformes Elasmobranchii Megamouth shark Pacific Ocean: Japan, Indonesia, Philippines, Hawaii and California, USA. Atlantic Ocean: Brazil and Senegal. FB 2737224 Megachasma pelagios 165 m FISH 1532248 34 N 130 E 1994 Megachasma pelagios