162,430 species and infraspecific names are in the database, 22,763 images, 64,016 bibliographic items, 475,067 distributional records.

Placoneis protracta (Grunow) Mereschkowsky 1903

Publication details
Placoneis protracta (Grunow) Mereschkowsky 1903: 16, pl. 1: fig. 30

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

Type species
The type species (lectotype) of the genus Placoneis is Placoneis gastrum (Ehrenberg) Mereschkowsky.

Status of name
This name is currently regarded as a synonym of Prestauroneis protracta (Grunow) Kulikovskiy & Glushchenko

Basionym
Navicula protracta Grunow

Origin of species name
Adjective A (Latin), drawn out, lenghtened (Stearn 1985).

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

General environment
This is a freshwater species.

No distributions recorded
No distributional records for this taxon have been recorded by AlgaeBase to date. Generally, recent national lists or extensive regional or state lists have been employed to give a general indication of distribution.

Source of current name
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]

Created: 06 January 2012 by Salvador Valenzuela Miranda

Verified by: 06 July 2018 by M.D. Guiry

Accesses: This record has been accessed by users 281 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=142162

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 01 August 2021.

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