FIGURE 2 in Acanthurus tractus Poey, 1860, a valid western Atlantic species of surgeonfish (Teleostei, Acanthuridae), distinct from Acanthurus bahianus Castelnau, 1855

FIGURE 2. Relationships among Atlantic Acanthurus based on Bayesian analysis of mitochondrial CytB sequences. Numbers above branches correspond to posterior probabilities and those below branches are bootstrap support. Since our analysis did not include Pacific or Indian Ocean surgeonfishes, relationships in this tree (especially the position of long branches) may change with the addition of other taxa.