104 Grammatorcynus bilineatus (Rüppell, 1836) Scombridae Mackerels, tunas, bonitos Scombrinae Scombriformes Teleostei Doublelined mackerel Indian Ocean: Red Sea eastward to the Andaman Sea. Western Pacific: Ryukyu Islands to the northern coasts of Australia, including the Marshall Islands and Fiji. Often confused in the literature with <i>Grammatorcynus bicarinatus</i>. P 93086.0021 27 N 33 E Grammatorycnus bilineatus P 95044.0060 27 N 33 E Grammatorycnus bilineatus FB 2739991 Thynnus bilineatus P 95044.0060 Grammatorycnus bilineatus P 93086.0021 Grammatorycnus bilineatus FISH 387380 5 S 150 E 1994 Grammatorycnus bilineatus