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Cocconema mexicanum Ehrenberg 1844

Classification:
Empire Eukaryota
Kingdom Chromista
Phylum Bacillariophyta
Subphylum Bacillariophytina
Class Bacillariophyceae
Subclass Bacillariophycidae
Order Naviculales
Suborder Naviculineae
Family Naviculaceae
Genus Cocconema

Pictures

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Cocconema mexicanum Ehrenberg
Digitized drawing _Like 1000x _Dim. 29 x 109 µm. 05 Mar 2013. © Robert Lavigne (MicroscopyView.com).

Cocconema mexicanum Ehrenberg
Digitized drawing _Like 1000x _Dim. 29 x 109 µm. 05 Mar 2013. © Robert Lavigne (MicroscopyView.com).

Cocconema mexicanum Ehrenberg
Truckee River, Nevada, USA; 1000x, DIC, Nevada Division of Environmental Protection. 29 Sep 2009. Karl Bruun. © Karl Bruun (skogenman@earthlink.net).

Cocconema mexicanum Ehrenberg
Seattle, Washington, USA; ship canal, 1000x, DIC. 23 Jan 2010. Karl Bruun. © Karl Bruun (skogenman@earthlink.net).

Cocconema mexicanum Ehrenberg
Seattle, Washington, USA; ship canal, 1000x, DIC. 23 Jan 2010. Karl Bruun. © Karl Bruun (skogenman@earthlink.net).

 

Laminaria flexicaulis f. ovata Le Jolis

Cocconema mexicanum Ehrenberg Digitized drawing _Like 1000x _Dim. 29 x 109 µm
© Robert Lavigne (MicroscopyView.com)

Publication details
Cocconema mexicanum Ehrenberg 1844: 342

Published in: Ehrenberg, C.G. (1844). Über einen deutlichen Einflufs des unsichtbar kleinen organischen Lebens als vulkanisch gefrittete Kieselmasse auf die Masselbildung von Bimstein, Tuff, Trafs, vulkanischem Conglomerat und auch auf das Muttergestein des nordasiatischen Marekanits. Bericht über die zur Bekanntmachung geeigneten Verhandlungen der Königlich-Preussischen Akademie der Wissenschaften zu Berlin 1844: 324-344.

Original description:  Download PDF

Type species
The type species (holotype) of the genus Cocconema is Cocconema cistula (Ehrenberg) Ehrenberg.

Status of name
This name is currently regarded as a synonym of Cymbella mexicana (Ehrenberg) Cleve

Type information
Type locality: "Mexico" (Jahn & Kusber 2004: 581). Notes: Lectotype (designated by Jahn & Kusber 2004): Specimen on preparation No. 200701-a red in BHUPM (Jahn & Kusber 2004: fig. 11-12).who commented "The selected specimen fits the original drawing on drawing sheet No. 312 in BHUPM (Fig. 10). Krammer (2002) cited later published illustrations (Ehrenberg 1854) as “iconotypes”; this is not a formal typification (Greuter & al. 2000a: Art. 7.11 & 9.21; Greuter & al. 2000b: 75-76) but can be misunderstood as such."

Fossil
Described as a fossil.

Origin of species name
Adjective A (Latin), Pertaining to Mexico (Stearn 1992).

Synonym(s)
No synonyms are currently included in AlgaeBase.

General environment
This is a freshwater species.

Detailed distribution with sources
(as Cocconema mexicanum Ehrenberg)
North America: United States of America (Kociolek 2005, Eberle 2008).

Source of current name
Cleve, P.T. (1894). Synopsis of the naviculoid diatoms. Part I. Kongliga Svenska Vetenskapsakademiens Handlingar Series 4 26(2): 1-194, 5 pls.

Created: 13 March 2006 by M.D. Guiry

Verified by: 26 January 2017 by M.D. Guiry

Accesses: This record has been accessed by users 348 times since it was created.

Verification of data
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Linking to this page: http://www.algaebase.org/search/species/detail/?species_id=104760

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 17 October 2021.

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