[ref. ID; 2014]
Medium to large (80-200 um long) ovoid ciliate. A large prominent undulating membrane delineates the right edge of the peristome which dominates the cell. This membrane begins just sub-apically and travels down the right side of the body terminating in the posterior body third in the form of a pouch or pocket by winding round so it is 6-shaped. Membranelle M1 is short and occupies an anterior position, M2 is long and terminates close to the cytostome while M3 adopts a complicated shaped and is composed of two parts. The anterior part is hook-shaped and the posterior part consists of two diverging short kineties and is sometimes called the M2 extension. Somatic ciliation uniform, the kineties are bipolar and there is a short post-oral suture. There are no post-oral kineties. Caudal cilia often present. Cytoproct slit-like located just post-orally. Contractile vacuole in posterior body half. Macronucleus spherical to void more or less centrally located.
Quote; Colin R. Curds, Michael A. Gates and David McL. Roberts "British and other freshwater ciliated protozoa Part II Ciliophora: Oligohymenophora and Polyhymenophora" Cambridge University Press, 1983 (ref. ID; 2014)

• Pleuronema anodontae Kahl, 1926 (ref. ID; 1622) reported year? (ref. ID; 1618)
• Pleuronema arenicola Dragesco, 1960 (ref. ID; 3690 original paper)
• Pleuronema chrysalis Ehrenberg (ref. ID; 2117)
• Pleuronema chrysalis Perty, 1852
  See; Pleuronema crassum (ref. ID; 1622)
• Pleuronema coronatum Kent, 1881 (ref. ID; 1622, 1629, 1890, 1896, 2117, 3119, 4488, 4611) reported year? (ref. ID; 1618, 3342, 3690, 3771)
  Syn; Pleuronema marina Mobius, 1888 (ref. ID; 1622)
• Pleuronema crassum Dujardin, 1841 (ref. ID; 1308, 1622, 1629, 3116, 4611) reported year? (ref. ID; 1618, 5462)
  Syn; Paramecium chrysalis O. F. Muller, 1786 (ref. ID; 3116); Pleuronema chrysalis Perty, 1852 (ref. ID; 1622); Pleuronema crassa Dujardin, 1841 (ref. ID; 4611)
• Pleuronema cyclidium Maskell, 1886
  See; Cyclidium brandoni (ref. ID; 1622)
• Pleuronema grassei Dragesco, 1960 (ref. ID; 3690 original paper)
• Pleuronema inflatum Lauterborn, 1915(?)
  See; Histiobalantium natans Claparede & Lachmann, 1858 (ref. ID; 1622)
• Pleuronema marina (ref. ID; 1879)
• Pleuronema marinum Dujardin, 1841 (ref. ID; 1622, 1890, 2117, 2316, 3119) reported year? (ref. ID; 1618, 3690, 3771)
• Pleuronema oculata Dragesco, 1960 (ref. ID; 3690 original paper)
• Pleuronema prunulum Kahl, 1926 (ref. ID; 1622)
• Pleuronema puytoraci Groliere & Detcheva, 1974 (ref. ID; 4006) reported author and year? (ref. ID; 191)
• Pleuronema setigerum Calkins, 1903 (ref. ID; 1308, 1335, 1622) reported year? (ref. ID; 1618)
• Pleuronema simplex Dragesco, 1960 (ref. ID; 3690 original paper)
• Pleuronema smalli (ref. ID; 4611)