Abstract
ON March 1, 1975 we sighted from the air, on the surface of the sea near La Paz, Baja California (Mexico), some unusual reddish brown streaks, extending for several hundred metres obliquely to the shore. On the following day we relocated them by ship (RV Dolphin) and found them to consist of high densities of the dinoflagellate Noctiluca and of a polyclad turbellarian, provisionally identified as Stylochoplana sargassicola (Mertens). Although blooms of Noctiluca are not uncommon1, marine pleustonic flatworms in large numbers are virtually unknown.
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CHENG, L., LEWIN, R. Flatworms afloat. Nature 258, 518–519 (1975). https://doi.org/10.1038/258518a0
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DOI: https://doi.org/10.1038/258518a0
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