First report and shooting the Penaeus ( Melicertus ) longistylus from Kume Island Okinawa Japan. Penaeus ( Melicertus ) longistylus is similar large species Penaeus ( Melicertus ) latisulcatus . Color also it is very similar. I met Penaeus ( Melicertus ) longistylus at night, it was on top of the coral reef. However, perhaps I think that they will live in close sand mud area to reef. Penaeus ( Melicertus ) longistylus has red spot of abdominal which is a feature, it is only on the trailing edge of the side surface of the third abdominal segment. Tips of uropods are blue with red hairs. Penaeus ( Melicertus ) longistylus Kubo,1943 Picture location: Depth -6 m, Northern reef Kume Island Okinawa Japan. Individual information: Total length about 150 mm. Species information: Maximum total length: 150 mm (female) English name: Red-spot king prawn Japanese name: unknown Distribution: Indo-West Pacific (South China Sea, Malaysia, North Australia, Lord