Algologia 2018, 28(3): 350–357 https://doi.org/10.15407/alg28.03.350New Taxa and Noteworthy Records
Protoperidinium hormusum sp. nov. (Dinoflagellata) from the strait of Hormuz
Krakhmalnyi A.F.1, Zarei Darki B.2- 1Institute for Evolutionary Ecology, NAS of Ukraine,
- 37 Lebedeva Str., Kiev 03143, Ukraine
- 2Department of Marine Biology, Faculty of Marine Sciences, Tarbiat Modares Univ.,
- Noor 46417-76489, Mazandaran Province, Iran
Abstract
A new species of dinoflagellate, Protoperidinium hormusum sp. nov. (Dinoflagellata, Protoperidiniaceae), was described by means of light fluorescent microscopy. It was found in the plankton of the Strait of Hormuz, which connects the Oman and Persian Gulfs, in 2015. Cells of P. hormusum are shaped like five-pointed star, symmetrical, and moderately flattened dorsoventrally; antapical horns are widely separated, relatively thin, and divergent. The epicone is conical with an apical pore. The first apical plate 1’ is “ortho” and the second anterior intercalary plate 2a is “neutra” or “hexa”. The cingulum is medial, slightly ascending (by 0.1–0.2 of its width). The sulcus is slightly extending onto the epicone, shaped like elongated oval, not reaching the antapex. Cell dimensions: 86.7–104.4 µm in length (95.7 ± 5.18 µm) and 64.9–81.6 µm in width (72.0 ± 5.22 µm).
Keywords: new species, Dinoflagellata, Dinophyta, Protoperidinium hormusum, Strait of Hormuz, Persian Gulf, Gulf of Oman
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