"Downie et al. (2011)" . "2011"^^ . . "2011"^^ . "Downie, A. J., Bray, R. A., Jones, B. E. & Cribb, T. H. 2011. Taxonomy, host-specificity and biogeography of Symmetrovesicula Yamaguti, 1938 (Digenea: Fellodistomidae) from chaetodontids (Teleostei: Perciformes) in the tropical Indo-west Pacific region. Systematic parasitology, 78(1): 1-18." . . "Downie et al. (2011)" . .