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Botanica Marina

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Volume 60, Issue 1


Morphology of Sinophysis microcephala and Sinophysis canaliculata (Dinophyceae) from the South Atlantic Ocean

Bruna S. Diniz
  • Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Departamento de Ecologia e Recursos Marinhos, Laboratório de Microalgas Marinhas, Av. Pasteur, 458, 22.290-240, Rio de Janeiro, RJ, Brazil
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Mariângela Menezes
  • Laboratório de Ficologia, Museu Nacional, Universidade Federal do Rio de Janeiro (UFRJ), 20940-040, Rio de Janeiro, Brazil
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Silvia Mattos Nascimento
  • Corresponding author
  • Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Departamento de Ecologia e Recursos Marinhos, Laboratório de Microalgas Marinhas, Av. Pasteur, 458, 22.290-240, Rio de Janeiro, RJ, Brazil
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2017-01-20 | DOI: https://doi.org/10.1515/bot-2016-0123


The aim of this study was to describe the morphology of species of the benthic dinoflagellate genus Sinophysis from the tropical South Atlantic. Species were collected from four sampling sites and were identified based on light and epifluorescence microscopy. Sinophysis microcephala was found at three sites. Cells were elongated and oval in lateral view. Sinophysis canaliculata was recorded at two sites. Cells were round in lateral view and a short cut was present at the H2 plate. To the best of our knowledge, this is the first record of the genus Sinophysis from the South Atlantic Ocean.

Keywords: benthic dinoflagellates; morphospecies; Sinophysis canaliculata; Sinophysis microcephala; taxonomy


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About the article

Bruna S. Diniz

Bruna S. Diniz obtained her MSc and BScH in Biological Sciences from the Federal University of Rio de Janeiro State (UNIRIO). During her academic career she worked at the Marine Microalgal Laboratory and her research involved morphotaxonomy of benthic dinoflagellates.

Mariângela Menezes

Mariângela Menezes is a Full Professor at the Federal University of Rio de Janeiro (UFRJ), National Museum, Department of Botany. She works on microalgal taxonomy and biodiversity, and her main research interests are ultrastructure, molecular phylogeny and evolution of toxic phytoflagellates.

Silvia Mattos Nascimento

Silvia Mattos Nascimento is an Associate Professor at the Federal University of Rio de Janeiro State (UNIRIO), Department of Ecology and Marine Resources. She works on phytoplankton ecology and toxic dinoflagellate biodiversity and is particularly interested in benthic dinoflagellate ecology and taxonomy.

Received: 2016-03-10

Accepted: 2016-12-16

Published Online: 2017-01-20

Published in Print: 2017-02-01

Citation Information: Botanica Marina, Volume 60, Issue 1, Pages 79–83, ISSN (Online) 1437-4323, ISSN (Print) 0006-8055, DOI: https://doi.org/10.1515/bot-2016-0123.

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