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I have seen it stated in a number of different guides that there are only 52 species of stony corals in Hawaii.  However, a quick trawl through J.E.N. Veron's Corals of the World soon turned up over 70 - which I have listed out below.  And Hawaii's Comprehensive Wildlife Conservation Strategy (HCWCS) has produced its own even longer list, which I have detailed below alongside my extract from Veron which would not claim to be comprehensive.  However, it seems that any two lists of Hawaiian corals will differ both in number and type of species recorded, and will also diverge on other key details - such as whether the species are endemic to Hawaii or not.  There are a number of species described as endemic by HCWCS, Hoover, etc that in fact appear to merely be indigenous.  Accepted examples of this are Acropora cytherea (known to be widely distributed throughout the Indo-Pacific), and Montipora capitata (which whilst common in Hawaii is found elsewhere, though admitted rarely).  The points to remember in all this is that the identification and taxonomy of corals is constantly evolving and changing.  For example, Douglas Fenner in his book Corals of Hawaii, has further questioned a number of these coral attributions (though I believe Fenner's work has yet to be peer reviewed).

Where available, I have provided hyperlinks to the Australian Institute of Marine Science's (AIMS) CoralSearch database entries for each coral.  Where either Veron or Hawaii's Comprehensive Wildlife Conservation Strategy indicate that a species is endemic to Hawaii, this is is highlighted with this icon - sometimes they actually agree!