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Pleurosigma angulatum (J.T.Quekett) W.Smith 1852

Empire Eukaryota
Kingdom Chromista
Phylum Bacillariophyta
Subphylum Bacillariophytina
Class Bacillariophyceae
Subclass Bacillariophycidae
Order Naviculales
Suborder Naviculineae
Family Pleurosigmataceae
Genus Pleurosigma


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Pleurosigma angulatum (J.T.Quekett) W.Smith
Zeiss Planapo 63x/1.4, DIC, 235µm, Marine sample, Alboran Sea; with salt crystals. 07 Nov 2020. Forbes Pettigrew. © Forbes Pettigrew.

Pleurosigma angulatum (J.T.Quekett) W.Smith
Utlandshörn, Germany. 17 Sep 2013. Wulf Herwig. © Wulf Herwig (WEHerwig@arcor.de).


Rhopalodia acuminata Krammer

Pleurosigma angulatum (J.T.Quekett) W.Smith Zeiss Planapo 63x/1.4, DIC, 235µm, Marine sample, Alboran Sea; with salt crystals
© Forbes Pettigrew

Publication details
Pleurosigma angulatum (J.T.Quekett) W.Smith 1852: 7; pl. 1, fig. 7, 8 [as var. beta], 9 [as var. gamma]

Published in: Smith, W. (1852). Notes on the Diatomaceae with descriptions of British species included in the genus Pleurosigma. Annals and Magazine of Natural History, Series 2 9: 1-12, 2 pls.
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Type species
This is the type species (holotype) of the genus Pleurosigma.

Status of name
This name is of an entity that is currently accepted taxonomically.

Navicula angulata J.T.Quekett

Origin of species name
Adjective (Latin), angled (Stearn 1973).

Homotypic Synonym(s)
Navicula angulata J.T.Quekett 1848
Gyrosigma angulatum (J.T.Quekett) Griffith & Henfrey 1855

Heterotypic Synonym(s)
Pleurosigma angulatum var. genuinum A.Cleve 1952

Nomenclatural notes
CAS suggest this this name may be invalid, but gives no reason. INA says that the name was "relegated to var. beta!" and "var. alpha later made P. quadratum by Smith", which may be sufficient to invalidate it. - (11 Oct 2011) - M.D. Guiry

Taxonomic notes
Emended by Sterrenburg (1991: 566; figs 2-34). - (15 Mar 2016) - M.D. Guiry

General environment
This is a marine species.

Detailed distribution with sources (Click to Load)

Key references
Al-Handal, A.Y. & Al-Shaheen, M.A. (2019). Diatoms in the wetlands of Southern Iraq. Bibliotheca Diatomologica 67: [1]-252, incl. 62 pls (652 figs), 1 map.

Hendey, N.I. (1964). An introductory account of the smaller algae of British coastal waters. Part V: Bacillariophyceae (diatoms). pp. [i]-xxii, 1-317. London: Ministry of Agriculture, Fisheries and Food, Fishery Investigations. Her Majesty’s Stationery Office.

Hustedt, F. (1930). Bacillariophyta (Diatomeae) Zweite Auflage. In: Die Süsswasser-Flora Mitteleuropas. Heft 10. (Pascher, A. Eds), pp. [i]-vii, [1]-466. Jena: Verlag von Gustav Fischer.

John, J. (2018). Diatoms from Tasmania: taxonomy and biogeography. The diatom flora of Australia Volume 2. pp. [1]-656, 351 figs. Schmitten - Oberreifenberg: Koeltz Botanical Books.

Krammer, K. & Lange-Bertalot, H. (1986). Bacillariophyceae 1 Teil: Naviculaceae. In: Süßwasserflora von Mitteleuropa. Begründet von A. Pascher. Herausgegeben von. H. Ettl, J. Gerloff, H. Heynig & D. Mollenhauer. Band 2/1. pp. [i]-xvi, [1]-876, 206 pls with 2976 figures. Stuttgart & New York: Gustav Fischer Verlag.

Pankow, H. (1976). Algenflora der Ostsee. II. Plankton (einschliesslich benthischer Kieselalgen). pp. 1-493, 880 figs, 26 pls. Jena: Gustav Fischer.

Patrick, R.[M.] & Reimer, C.W. (1966). The diatoms of the United States exclusive of Alaska and Hawaii. Volume 1: Fragilariaceae, Eunotiaceae, Achnanthaceae, Naviculaceae. Monographs of the Academy of Natural Sciences of Philadelphia 13: 1-688.

Plinski, M. & Witkowski, A. (2020). Diatoms from the Gulf of Gdansk and surrounding waters (the southern Baltic Sea). : [1]-442, incl. 31 SEM pls, 16 photo pls.

Plinski, M. & Witkowski, A. (2020). Diatoms from the Gulf of Gdansk and surrounding waters (the southern Baltic Sea). : [1]-442, incl. 31 SEM pls, 16 photo pls.

Proschkina-Lavrenko, A.I. [Ed.] (1950). Diatomovyi Analiz, Kniga 3. Opredelitel' iskopaemykh i sovremennykh diatomik vodoroslei Poriadok Pennales. Vol. 3 (1). pp. [1]-398, 117 pls. Kiev: Botanicheskii Institut im V.L. Komarova Akademii Nauk S.S.S.R. Gosudarstvennoe Izdatelystvo Geologicheskoi Literatury. [in Russian]

Sterrenburg, F.A.S. (1991). Studies on the genera Gyrosigma and Pleurosigma (Bacillariophyceae). The typus generis of Pleurosigma, some presumed varities and imitative species. Botanica Marina 34: 561-573.

Tomas, C.R., Eds (1996). Identifying marine diatoms and dinoflagellates. pp. 1-858. San Diego: Academic Press Inc.

Created: 03 May 2003 by Mairead Murphy

Verified by: 26 August 2020 by M.D. Guiry

Accesses: This record has been accessed by users 5786 times since it was created.

Verification of data
Users are responsible for verifying the accuracy of information before use, as noted on the website Content page.

(Please note: only references with the binomials in the title are included. The information is from the Literature database.)

Cartaxana, P., Brotas, V. & Serodio, J. (2008). Effects of two motility inhibitors on the photosynthetic activity of the diatoms Cylindrotheca closterium and Pleurosigma angulatum . Diatom Research 23(1): 65-74.
Reid, G. (2001). On the identity of Pleurosigma angulatum (Bacillariophyta) and related species. Bull. Nat. Hist. Museum (Bot.) 31(2): 107-117, 8 fig., 3 tables.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2020. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 03 December 2020.

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