ABSTRACT
New records of higher marine fungi for the Hawaiian Islands in general (seven species) and for Molokai (10 species) are presented. Checklists for Moorea, Society Islands (23 species, 21 of these new records) and Fiji (31 species, 15 of these new records) are also included. A comparison of the marine mycota of recently introduced Rhizophora species (Hawaii and Moorea) with that of long established Rhizophora stands from the Caribbean (Belize) revealed interesting differences. Only seven and 21 species were collected from Moorea and Oahu, respectively, while 43 species are known from Rhizophora in Belize. These differences and their possible causes are discussed in detail. The arenicolous fungi of Hawaii (six species), Moorea (three species) and Fiji (four species) are compared with those from eight locations in the Caribbean (nine species). The most abundant members of this group are Corollospora maritima and Arenariomyces trifurcatus, which is in agreement with findings from other areas around the world. The only species found exclusively in Hawaii, thus far, is C. novofusca.