Clownfish or anemonefish are fishes from the subfamily Amphiprioninae in the family Pomacentridae. Thirty species are recognized, one in the genus Premnas, while the remaining are in the genus Amphiprion.
Yellow Tang [ Zebrasoma flavescens] at the Bristol Zoo, Bristol, England. This is the character Bubbles in the film “Finding Nemo”. This usually placid Yellow-Tang can erect spines in its tail and slash at its opponent with rapid sideways movements.