Blackbarred Wrasse

In the black-barred wrasse the adults are blackish above and have the ventral half of the head, chest and belly white. There is a short white to yellow vertical stripe which starts above the pectoral-fin base, a further two broad white to yellow stripes are on the flanks and they have a yellow tail. In females, the pale areas are largely white, while in the males the pale areas are more yellow. The males also have a pale pink chin and long, thin filaments on the lobes of the caudal fin and pink patches on the ventral parts of the head and chest. Males have been measured at standard length of 20 centimetres (7.9 in). This species is frequently confused with the similar Jansen's wrasse (Thalassoma janseni).

The black-barred wrasse is found in the south western Pacific Ocean from eastern Papua New Guinea and the Solomon Islands south to the Great Barrier Reef, Lord Howe Island and Norfolk Island, the Kermadec Islands, New Caledonia and Tonga, it has also been recorded in Niue.