Turbinaria sp. (Phaeophyceae, Sargassaceae) from Iwayama Bay, Palau Islands (Western Caroline Islands)

Turbinaria was collected from Iwayama Bay, Palau Islands (Western Caroline Islands) on 20 November 1986. From this locality, only T.ornata (TURNER) J.AGARDH had been reported. Asecond entity, Turbinaria sp. occurred intermixed with T.ornata and did not fit any describetaxon from the Indo-Pacific. Blades were spreading or erect, thin (-20 mm long, -10 mmbroad), soft, hemi-peltate, and highly dentate with subterete or slightly triquetrous stalks.Taxonomic ranking was withheld as blades from fertile plants were similar to juvenile or caulineblades of T.ornata. Further field and laboratory investigations are warranted to determine intra-orinter-specific ranking.