Abstract
A floristic study of marine diatoms ( planktonic and epilithic) in coastal waters Sesoko Isl., Okinawa Prefecture, was carried out. Diatoms were examined using light micr oscopy (LM) and scanning electron microscopy (SEM). A total of 65 taxa (at the species and variety level) were found. Dominant taxa in the samples were Guinardia cylindrus (Cleve)Hasle var. cylindrus, Guinardia striata (Stolterf. ) Hasle, Neocalyptella robusta (G. Norman)Hern. - Becer. et Meave, Proboscia alata (Brightw. ) Sundström var. alata, Bleake leya notata (Grunow) Round and Psammodiscus nitidus (WGreg. ) Round et D. G. Mann were new occurences in Japan.
