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Pera, Faro, Portugal
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Pera, Faro, Portugal
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Oxyrrhis (ox-irr-is) is usually classified among the dinoflagellates, but it does not resemble other dinoflagellates in overall appearance The cell lacks the two grooves encountered in most dinoflagellates, instead the flagella insert into a pocket, and their insertion is protected by a flat rounded fold. Oxyrrhis may occur in marine or brackish water habitats including tide pools, and gives a pink colour to the water when it occurs in large numbers. Differential interference contrast.
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The picture of this dinoflagellate shows the club-like appendage characteristic of this organism. It was collected from Little Sippewisset Salt Marsh, Woods Hole, MA, USA. Photo by Bob Moore and M. Virginia Sanchez Puerta.
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Dinoflagellate collected from Little Sippewisset Salt Marsh, Woods Hole, MA, USA. Photographed using DIC microscopy by Bob Moore and M. Virginia Sanchez Puerta.
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Ventral face of Oxyrrhis. This cell has been consuming red (purple) sulphur bacteria.
