Abramites hypselonotus 88 Abudefduf saxatilis 241 Abudefduf sexfasciatus 241 Acanthurus achilles 236 Acanthurus japonicus 236 Acanthurus leucosternon 237 Acanthurus lineatus 237 Acanthurus olivaceus 237 Acanthurus pyroferus 236
These fish commonly include significant amounts of algae in their diet—in fact, the word “tang,” which is applied to smaller members of the group, is an abbreviation of the German Seetang, meaning “seaweed.” Just like land herbivores, these fish have beneficial populations of bacteria in their alimentary tracts to assist the breakdown of plant matter.