Amphiprion
Premium Member
Hmm, as of 2000 (at least), Micromussa and Acanthastrea remain as discrete genera. I am not a coral taxonomist, but that is the latest date that I have seen these corals being separate in scientific literature, etc. Even if that weren't the case, it wouldn't be a new taxon, though. A taxon is the unit of the taxonomic hierarchy (i.e. Kingdom, phylum, class, order, family, genus, species). "amakusensis" isn't a taxon by itself (it is a species used to specify a particular complex of organisms, in this case, corals).