Molluscan Hard-Substrate Associations in the Northern Red Sea

摘要: . The mollusc associations of 29 hard-substrate localities in the Northern Bay Safaga Red Sea, Egypt were studied. hard substrates classified into 7 types: reef flats, intertidal rock bottom, very shallow subtidal conglomerate, Porites carpet, faviid platy scleractinian association, Sarcophyton carpet. Based on a cluster analysis molluscs these can be 5 groups: Group A is dominated by Dendropoma maxima, Chamoidea and Tridacna group B Pedum spondyloideum, T. maxima Coralliophila neritoidea, C Cerithium ruppelli, D Modiolus auriculatus, Chamoidea, Morula granulata Nerita albicilla E Pitar hebraea. latter contains only samples which are generally poor molluscs. diagnostic for carpets, carpets tidal/shallow substrates. different therefore characterized some them could also identified fossil record.