Diets of coral-dwelling fishes of the genus Gobiodon with evidence of corallivory

Evidence of facultative corallivory is documented in three species of obligate coral-dwelling gobies (genus Gobiodon) based on the presence of spirocysts in gut contents. Coral-dwelling gobies also consumed a broad range of other items with gut contents dominated by algae, invertebrates and amorphous material. Dietary similarities between species suggest corallivory may be widespread in this genus.