Heniochus acuminatus also known as the Longfin Bannerfish and often called the "poor mans' Moorish Idol", occurs throughout East Africa and Persian Gulf to the Society Islands, the tropical Indo-West and Central Pacific, north to southern Japan, south to Lord Howe Island. Throughout Micronesia. The Longfin Bannerfish tend to inhabit deep protected lagoons and channels, and deeper parts of reef slopes from 2 m to 75 m. Found alone, in pairs, or in small groups. This fish likes company of its own kind.
The Longfin Bannerfish is recognized by its elongated dorsal spine and the bony protuberance on the forehead, differentiating it from other butterflyfish.
Heniochus acuminatus are coral reef feeders, feeding on both coral and small invertebrates. Apparently young specimens have been known to act as cleanerfish, eating parasites off of other fish! Not much is known about reproduction in this species.
Chaetodon acuminatus Linnaeus, 1758
Chaetodon bifasciatus Shaw, 1803
Chaetodon macrolepidotus Linnaeus, 1758
Chaetodon mycteryzans Gronow, 1854
Heniochus accuminatus (Linnaeus, 1758)
Heniochus macrolepidotus (Linnaeus, 1758)
Taurichthys macrolepidotus (Linnaeus, 1758)
Classification: Biota > Animalia (Kingdom) > Chordata (Phylum) > Vertebrata (Subphylum) > Gnathostomata (Superclass) > Pisces (Superclass) > Actinopterygii (Class) > Perciformes (Order) > Chaetodontidae (Family) > Heniochus (Genus) > Heniochus acuminatus (Species)