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Lim, H.C., S.T. Teng, C.P. Leaw, M. Iwataki, and P.T. Lim. 2014. Phytoplankton assemblage of the Merambong Shoal, Tebrau Straits with note on potentially harmful species. Malayan Nature J. 66: 198-211. [discusses P. brasiliana and P. pungens]