162,405 species and infraspecific names are in the database, 22,760 images, 63,996 bibliographic items, 474,969 distributional records.

Placoneis gastrum (Ehrenberg) Mereschkowsky 1903

Publication details
Placoneis gastrum (Ehrenberg) Mereschkowsky 1903: 13, pl. 1: fig. 17

Published in: Mereschkowsky, C. (1903). Über Placoneis, ein neues Diatomeen-Genus. Beihefte zum Botanischen Centralblatt 15(1): 1-30, pl. 1.

Type species
This is the type species (lectotype) of the genus Placoneis.

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

Basionym
Pinnularia gastrum Ehrenberg

Type information
Lectotype locality: Husavic, Iceland (79°N 342W) (Jahn 2004: 232). Lectotype: Dr. Thienemann; 1821; fuel peat. BHUPM (Ehrenberg Collection) Geographical Preparation 351016 c blue (Jahn 2004: 232, fig. 3). Notes: Syntypes: Vera Cruz, Mexico; New Haven, Connecticut; Iceland. Collector: Carl Ehrenberg (INA).

Origin of species name
Noun (Latin), belly, stomach, womb, paunch (Brown 1946).

Homotypic Synonym(s)
Pinnularia gastrum Ehrenberg 1843
Navicula gastrum (Ehrenberg) Kützing 1844
Schizonema gastrum (Ehrenberg) Kuntze 1898

Heterotypic Synonym(s)
Navicula gastrum f. maxima Tempère & Peragallo 1909

General environment
This is a freshwater species.

Detailed distribution with sources
(as Pinnularia gastrum Ehrenberg)
Atlantic Islands: Iceland (Jahn 2004 ).

Europe: Slovakia (Hindák & Hindáková 2016).

North America: United States of America (Kociolek 2005).

(as Navicula gastrum (Ehrenberg) Kützing)
Atlantic Islands: Iceland (Foged 1974).

Europe: Britain (Hendey 1954, Hendey 1974, Hartley 1986), France (Germain 1981, Anon. 2017), Germany (Ludwig & Schnittler 1996, Rumrich, Lange-Bertalot & Rumrich 2000, Mauch & Schmedtje 2003, Täuscher 2014, Täuscher 2016, Stutz & Mattern & al. 2018), Ireland (Adams 1908, Foged 1977, Wolnik & Carter 2014), Netherlands (Veen & al. 2015), Russia (Europe) (Stenina & Patova 2007), Slovakia (Hindák & Hindáková 2016), Spain (Álvarez Cobelas & Estévez García 1982).

North America: Alaska (Foged 1981), Laurentian Great Lakes (Stoermer, Kreis & Andresen 1999), Northwest Territories (Sheath & Steinman 1982), United States of America (Patrick & Reimer 1966, Kociolek 2005, Eberle 2008).

Africa: Ghana (Foged 1966), Zaire (Golama Swana Kaketa 1996).

Middle East: Egypt (Khairy & al. 2017), Iraq (Maulood & al. 2013).

South-west Asia: Bangladesh (Ahmed & al. 2009), India (Gupta & Das 2020).

South-east Asia: Myanmar (Burma) (Skuja 1949), Thailand (Foged 1972).

Asia: China (Hu & Wei 2006), Korea (Lee, Choi & Lee 1995, Lee 2012), Mongolia (Edlund & al. 2001), Taiwan (Shao 2003-2014).

Australia and New Zealand: Australia (McCarthy 2013), Queensland (Day & al. 1995, Bostock & Holland 2010).

(as Placoneis gastrum (Ehrenberg) Mereschkowsky)
Europe: Baltic Sea (Hällfors 2004), Britain (Sims 1996, Whitton & al. 2003), France (Anon. 2017), Germany (Täuscher 2014, Täuscher 2016, Cantonati & al. 2017, Reichardt 2018, Hofmann & al. 2018, Stutz & Mattern & al. 2018), Ireland (Wolnik & Carter 2014), Netherlands (Veen & al. 2015), North Macedonia (Levkov & Williams 2012), Poland (Bąk et al. 2012, Plinski & Witkowski 2020), Romania (Caraus 2017), Scandinavia (Karlason & al. 2018), Ukraine (Bukhtiyarova 1999, Berezovskaya 2019, Kryvosheia & Kapustin 2019).

North America: Idaho (Bahls 2006), Laurentian Great Lakes (Stoermer, Kreis & Andresen 1999), Mexico (Novelo 2012, López-Fuerte & Siqueiros-Beltrones 2016), Mexico (Pacific) (Torres-Ariño & al. 2019), Montana (Bahls 2006), Nebraska (Bahls 2006), NW USA (Bahls 2009), Tennessee (Johansen & al. 2007), United States of America (Kociolek 2005, Eberle 2008), Wyoming (Bahls 2006).

South America: Uruguay (Metzeltin & García-Rodríguez 2012).

Africa: Democratic Republic of Congo (Stoyneva-Gärtner & Descy 2020), Ghana (Smith, Smith & Nii Yemoh Annang 2015), Sudan (Reinhold 1937).

Middle East: Egypt (Khairy & al. 2017), Turkey (Aysel 2005, Kalei & Akçaalan 2020).

South-west Asia: India (Roy & Kershi 2015).

Asia: China (Li & Qi 2018), Mongolia (Edlund & al. 2001, Dorofeyuk & Kulikovskiy 2012), Russia (Kulikovskiy & al. 2016), Russia (Far East) (Medvedeva & Nikulina 2014, Medvedeva & Nikulina 2019), Tajikistan (Niyatbekov & Barinova 2018).

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

Pacific Islands/Pacific Ocean: Hawaiian Islands (Sherwood 2004).

Key references
Eberle, M.E. (2008). Recent diatoms reported from the central United States: register of taxa and synonyms. Hays, Kansas: Department of Biological Sciences, Fort Hays State University. Latest electronic version: 5 December 2008.

Hofmann, G., Werum, M. & Lange-Bertalot, H. (2013). Diatomeen im Süßwasser—Benthos von Mitteleuropa. Bestimmungsflora Kieselalgen für die ökologische Praxis. Über 700 der häufigsten Arten und ihre Ökologie. pp. [1]-908, 133 pls. Königstein: Koeltz Scientific Books.

Jahn, R. (2004). Discovery of the type specimen of Pinnularia gastrum Ehrenberg, the type species of the genus Placoneis Mereschkowsky. Diatom Research 19(2): 229-234.

Kulikovskiy, M., Glushchenko, A.M., Kuznetsova, I.V. & Genkal, S.I. (2016). [Identification book of diatoms from Russia]. pp. [1]-804, 165 pls. Yaroslavl: Filigran. [in Russian]

Lange-Bertalot, H., Hofmann, G., Werum, M. & Cantonati, M. (2017). Freshwater benthic diatoms of Central Europe: over 800 common species used in ecological assessments. English edition with updated taxonomy and added species (Cantonati, M. et al. eds). pp. [1]-942, 135 pls. Schmitten-Oberreifenberg: Koeltz Botanical Books.

Li Jiaying & Qi Yuzao [Li, J.Y. & Qi, Y.Z.] (2018). Flora algarum sinicarum aquae dulcis Tomus XXIII Bacillariophyta Naviculaceae (III). pp. [1-8], i-xxiii, 1-214, pls I-XLVIII. Beijing: Science Press.

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

Reichardt, E. (2018). Die Diatomeen im Gebiet der Stadt Treuchtlingen. pp. [1]-576 (Band 1); 579-1184 (Band 2), incl 451 pls. München: Bayerische Botanische Gesellschaft [Selbstverlag der Gesellschaft].

Roy, S. & Kershi, J.P. (2015). Some noteworthy fresh–water Diatoms of Joypur Forest, Bankura District, West Bengal, India. Nelumbo 57: 112-123, 4 pls, 1 chart.

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: 11 April 2002 by M.D. Guiry

Verified by: 02 February 2021 by M.D. Guiry

Accesses: This record has been accessed by users 1616 times since it was created.

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

Jahn, R. (2004). Discovery of the type specimen of Pinnularia gastrum Ehrenberg, the type species of the genus Placoneis Mereschkowsky. Diatom Research 19(2): 229-234.

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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 28 July 2021.

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