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Type: Article
Published: 2019-01-15
Page range: 155–160
Abstract views: 18
PDF downloaded: 1

Angusticopula rowlingiana, a new melosiroid diatom (Bacillariophyta) from Ascension Island (South Atlantic Ocean)

Meise Botanic Garden, Research Department, Nieuwelaan 38, B-1860 Meise, Belgium University of Antwerp, Department of Biology, ECOBE, Universiteitsplein 1, B-2610 Wilrijk, Antwerpen, Belgium
Meise Botanic Garden, Research Department, Nieuwelaan 38, B-1860 Meise, Belgium
Academy of Sciences of the Czech Republic, Institute of Botany, Dukelskaì 135, CZ-379 82 Třeboň, Czech Republic
Department of Life Sciences, Diversity and Informatics Division, Natural History Museum, Cromwell Road, London SW7 5BD, UK
Ascension Island new species morphology melosiroid Angusticopula Algae

Abstract

During a diatom survey of some samples from Ascension Island, a remote island located in the southern Atlantic Ocean, an unknown melosiroid diatom species was studied using both light and scanning electron microscopy. It proved to be a new species described as Angusticopula rowlingiana sp. nov. and characterized by a large number of narrow copulae in the girdle, a marginal ring of small granules, very small pores covering the entire valve face and occasionally having internal valves.

                The new species is compared with all Angusticopula species known worldwide and with several Melosira species showing a similar combination of characters. Short notes on its ecology are included.