Dorsal spines: 9; dorsal soft rays: 25 to 28; anal spines: 3; anal soft rays: 23 to 26. Color dark brown without lines on body or spots on head (one phase is purplish grey); horizontal black band behind upper gill opening absent on juveniles.
What type of species is Acanthurus nigricauda? Below, you will find the taxonomic groups the Acanthurus nigricauda species belongs to.
How to identify Acanthurus nigricauda marine species? Below, you will find the list of main identification criteria and physical characteristics of marine species Acanthurus nigricauda. For each identification criteria, the corresponding physical characteristics of marine species Acanthurus nigricauda are marked in green.
Where is Acanthurus nigricauda found in the world? Below, you will find the list and a world map of the geographic distribution where the marine species Acanthurus nigricauda can be found.
Which photographers have photos of Acanthurus nigricauda species? Below, you will find the list of underwater photographers and their photos of the marine species Acanthurus nigricauda.