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Three new Ostreopsis species (Dinophyceae): O. marinus sp. nov., O. belizeanus sp. nov., and O. caribbeanus sp. nov.

Tipo de material: TextoTextoSeries ; Phycologia, 38(2), p.92-99, 1999Trabajos contenidos:
  • Faust, M.A
Tema(s): Recursos en línea: Resumen: The morphology of three new species, Ostreopsis marinus sp. nov., Ostreopsis belizeanus sp. nov., and Ostreopsis caribbeanus sp. nov., is described from two geographical regions (Caribbean Sea and southwest Indian Ocean)and four marine habitats (water column, sand, dead corals, and macroalgal surfaces)using scanning electron microscopy. Differences in the following surface morphological characteristics separated these new species from the existing six species of Ostreopsis: cell shape and size and ornamentation of the epitheca, cingulum, and hypotheca. The thecal plate formula of the three new Ostreopsis species is Po, 3', 7'', 6C, 6S, Vp, Rp, 5''', 1p, 2''''. The most variable characteristics in the genus Ostreopsis are thecal plate size and shape. A morphological comparison of O. marinus sp. nov., O. belizeanus sp. nov., and O. caribbeanus sp. nov. with the six known Ostreopsis species is presented.
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The morphology of three new species, Ostreopsis marinus sp. nov., Ostreopsis belizeanus sp. nov., and Ostreopsis caribbeanus sp. nov., is described from two geographical regions (Caribbean Sea and southwest Indian Ocean)and four marine habitats (water column, sand, dead corals, and macroalgal surfaces)using scanning electron microscopy. Differences in the following surface morphological characteristics separated these new species from the existing six species of Ostreopsis: cell shape and size and ornamentation of the epitheca, cingulum, and hypotheca. The thecal plate formula of the three new Ostreopsis species is Po, 3', 7'', 6C, 6S, Vp, Rp, 5''', 1p, 2''''. The most variable characteristics in the genus Ostreopsis are thecal plate size and shape. A morphological comparison of O. marinus sp. nov., O. belizeanus sp. nov., and O. caribbeanus sp. nov. with the six known Ostreopsis species is presented.

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