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This index has several hundred pictures, and it's still growing. If you have pictures to contribute which you have taken yourself, I'll happily add them to the database, and give you appropriate credit.
Heniochus acuminatus
Common name: black and white heniochus, long-fin bannerfish
 Photo by Mark Rosenstein / Active Window Productions, Inc. |
 In Fiji Photo by Mark Rosenstein / Active Window Productions, Inc. |
These fish are very hardy and easy to care for compared to most butterflies.
They are very similar to H. diphreutes. In the wild you can tell them apart because these are primarily solitary whereas H. diphreutes is social, occuring in shoals. Also, H. diphreutes has a more rounded breast, less protruding snout, and its second black band ends at the corner of the anal fin.