Two new species of Haliotrema Johnston & Tiegs, 1922 (Monogenea: Dactylogyridae) from Acanthurus nigrofuscus (Forsskal) and A. triostegus (Linnaeus) (Teleostei: Acanthuridae) in the South China Sea. Systematic Parasitology, 91(3), Jul 2015: 253-259. 256 [Zoological Record Volume 151]