Etelis coruscans, commonly known as the longtail snapper or deep-water red snapper, is a species of snapper found in the Pacific and Indian oceans.

[2] It is a valuable commercial species, and lives quite deep – from 210 to 300 m (690 to 980 ft).

It is a long-lived species that grows and matures slowly.

[3] In Hawai'i the fish is widely known as onaga.

When eaten, it has a mild flavour and pale pink flesh.