159,870 species and infraspecific names are in the database, 22,563 images, 61,899 bibliographic items, 468,408 distributional records.

Actinocyclus octonarius var. sparsus (Gregory) Hendey 1954

Publication details
Actinocyclus octonarius var. sparsus (Gregory) Hendey 1954: 557

Published in: Hendey, N.I. (1954). A preliminary check-list of British marine diatoms. Journal of the Marine Biological Association of the United Kingdom 33: 537-560.
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Type species
The type species (lectotype) of the genus Actinocyclus is Actinocyclus octonarius Ehrenberg.

Eupodiscus sparsus Gregory

Homotypic Synonym(s)
Eupodiscus sparsus Gregory 1857
Actinocyclus ralfsii var. sparsus (Gregory) Ralfs 1861
Actinocyclus ehrenbergii var. sparsus (Gregory) Hustedt 1929

Heterotypic Synonym(s)
Actinocyclus sparsus (Gregory) Rattray 1890

General environment
This is a marine species.

Detailed distribution with sources
(as Actinocyclus sparsus (Gregory) Rattray)
Atlantic Islands: Madeira (Kaufmann, Santos & Maranhão 2015).

(as Actinocyclus octonarius var. sparsus (Gregory) Hendey)
Atlantic Islands: Madeira (Kaufmann, Santos & Maranhão 2015).

Europe: Baltic Sea (Hällfors 2004), Britain (Hendey 1954, Hendey 1974, Hartley 1986, Sims 1996).

North America: Mexico (Atlantic) (Licea, Moreno-Ruiz & Luna 2016).

South-west Asia: India (Gupta & Das 2020).

South-east Asia: Singapore (Pham & al. 2011).

Asia: Korea (Lee, Choi & Lee 1995).

Australia and New Zealand: New Zealand (Harper & al. 2012).

Key references
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.

Hendey, N.I. (1974). A revised check-list of the British marine diatoms. Journal of the Marine Biological Association of the United Kingdom 54: 277-300, no figs.

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

Sims, P.A. (ed.) (1996). An atlas of British diatoms arranged by B. Hartley based on illustrations by H.G. Barber and J.R. Carter. pp. [2], 1-601, incl. 290 pls. Bristol: Biopress Ltd.

Created: 23 April 2002 by M.D. Guiry

Verified by: 30 November 2018 by M.D. Guiry

Accesses: This record has been accessed by users 803 times since it was created.

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Citing AlgaeBase
Cite this record as:
M.D. Guiry in Guiry, M.D. & Guiry, G.M. 2021. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 18 January 2021.

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