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Name derivation:

 

 

Classification:

Menoidium  Perty  1852;  18 of 33 species descriptions are currently accepted taxonomically (Guiry and Guiry 2013).

 Order Euglenales; Family Euglenaceae.

Morphology:

Colorless, rigid free-swimming unicells (15 to 75 μm long), cylindrical with one emergent flagellum that is mobile during motion and straight when at rest.  Contains large paramylon ‘links’, often has cytoplasmic streaming (Guiry and Guiry 2013).

Similar genera:

Heteronema is flattened rather than cyindrical and has trailing a flagellum free from the cell (Leedale 1967).

Habitat:

Freshwater, widespread.

 

References:

Guiry, M.D. and Guiry, G.M. 2013.  AlgaeBase.  World-wide electronic publication, National University of Ireland, Galway.  http://www.algaebase.org; searched on 5 April 2013.

Perty, M.  1852.  Zur Kenntniss kleinster Lebensformen: nach Bau, Funktionen, Systematik, mit Specialverzeichniss der in der Schweiz beobachteten. pp. 1-228, pls I-XVII. Bern: Jent & Reinert.