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Type: Article
Published: 2019-05-28
Page range: 287–291
Abstract views: 27
PDF downloaded: 1

Apicoporus haificum (Gymnodiniaceae), a new dinoflagellate species from sandy sediments of the Mediterranean Sea (Israel coast)

Institute of Evolution and Department of Evolutionary and Environmental Biology, Faculty of Natural Sciences, University of Haifa. 199 Abba Khousi Ave., Mt. Carmel, Haifa 3498838, Israel.
Laboratory of Preservation and Biodiversity Renewal, Institute for Evolutionary Ecology of NAS of Ukraine. 37 Acad. Lebedeva Str., Kiev 03143, Ukraine
Apicoporus haificum sp. nov. Dinoflagellata interstitial species morphology Algae

Abstract

A new dinoflagellate species (Dinophyceae, Gymnodiniales)—Apicoporus haificum Krachmalny sp. nov. was described on a basis of thorough light microscopy studies. The species was found in sandy sediments (water-filled spaces between sand grains) on the eastern coast of the Mediterranean Sea (HaCarmel beach, Haifa, Israel). Apicoporus haificum possesses the following features: cells elongated (with length exceeding width by 3.1–3.8 times), lanceolate in dorsoventral projection, roundish in cross-section with slight dorsoventral compression, asymmetrical, slightly curved to the right, with antapical depression. Epicone asymmetrical, somewhat umbonate, with a small hook-shaped protrusion on the apex. Cingulum displaced, descending by 1/3 cell’s length, its distal part almost parallel to the anterior portion of sulcus. Sulcus narrow, shallow, extends from the apex to the antapical depression, with apical groove. Cell surface covered with longitudinal striations that converge on the apex and on the antapical protrusion. Chloroplasts absent. Dimensions: 75.3±2.2 μm in length, 21.4±1.5 μm in width. Comparison of A. haificum to morphologically similar Apicoporus glaber and Amphidinium scissum is discussed.