Chaetodon mertensii

Atoll butterflyfish

Distribution: from the Philippines to Southern Japan, the Tuamotu Islands and Lord Howe.

Replaced by Chaetodon xanthurus in Southeast AsiaChaetodon madagaskariensis in the Indian Ocean, and Chaetodon paucifasciatus in the Red Sea.

Wanting to share some of your pics on this page? Upload your pictures on the spot page where the species has been photographed first (see here the list of all inventoried snorkeling spots). If your pics have been taken at another spot, you can add it to our map (see more here).