Rock dwellers, like the rare, delicate red alga of deeper waters in the northern Red Sea, Haloplegma duperreyi Montagne
or the more frequently encountered green algae of shallow waters, Caulerpa taxifolia (Vahl) C. Agardh
and Neomeris annulata Dickie
are typical along the Sinai coasts, as well as psammopytes like Halimeda macroloba Decaisne.
to National Collection of Marine & Freshwater Plants' page