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Algae > Volume 22(1); 2007 > Article
Algae 2007;22(1): 11-15. doi: https://doi.org/10.4490/algae.2007.22.1.011
Gynogonadinium aequatoriale gen. et sp. nov., a New Dinoflagellate from the Open Western Equatorial Pacific
Fernando Gómez
Station Marine de Wimereux, Université des Sciences et Technologies de Lille-Lille1, FRE 2816 ELICO CNRS, 28 avenue Foch, BP 80, F-62930 Wimereux, France
*Corresponding Author  Email: fernando.gomez@fitoplancton.com
A new genus and species of marine dinoflagellate from the open western equatorial Pacific Ocean, Gynogonadinium aequatoriale gen. et nov. sp., is described from light and scanning electron micrographs. This laterally compressed unarmoured taxon had a triangular cell body in lateral view with two different elongate extensions. The end of the apical extension was spherical with a groove that arises from the epicone in the ventral side of the cell. The antapical extension was longer. The dorsal part of the cingulum showed undulated lists in each margin. The nucleus was ellipsoidal and perpendicularly crossed the cingulum. Dimensions of cells were 90-110 μm long and 43-55 μm wide in lateral view at the level of the cingulum. Gynogonadinium is placed in the order Gymnodiniales, family uncertain.
Key words: apical groove, Dinophyceae, equatorial Pacific Ocean, Gynogonadinium aequatoriale, taxonomy

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