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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Pseudovorticella

Pseudovorticella Foissner & Schiffman, 1975 (ref. ID; 2014)

Class Oligohymenophora: Subclass Peritricha: Order Peritrichida: Suborder Sessilina (ref. ID; 2014)

[ref. ID; 2014]
Solitary, bell-shaped zooids upon a spirally contractile stalk. In all respects, save one, the body and stalk of this genus resemble those of Vorticella from which it cannot be differentiated until impregnated with silver, which reveals a mesh-like pattern on the surface of the body quite unlike that of Vorticella. In addition to Vorticella, this genus could be mistaken for Haplocaulus, in which the stalk contracts in a zigzag manner.
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)
  1. Pseudovorticella chlamydophora (Penard, 1922) Jankowski, 1976 (ref. ID; 4610) reported author and year? (ref. ID; 1629, 2082)
  2. Pseudovorticella difficilis (ref. ID; 2082)
  3. Pseudovorticella fasciculata (ref. ID; 2082)
    Syn; Pseudovorticella margaritata f. chlorelligenra (ref. ID; 2082)
  4. Pseudovorticella margaritata var. chlorelligera (ref. ID; 4610)
  5. Pseudovorticella monilata (Tatem) (ref. ID; 3698) or (Tatem, 1870) Foissner & Schiffmann, 1974 (ref. ID; 4610) reported author and year? (ref. ID; 1114, 1629, 2082)
    Syn; Vorticella convallaria var. monilata Tatem, 1870 (ref. ID; 4610); Vorticella margaritata Fromental, 1876 (ref. ID; 4610); Vorticella monilata (ref. ID; 2082)
  6. Pseudovorticella mutans (Penard) (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)
  7. Pseudovorticella pseudocampanula Foissner (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)
  8. Pseudovorticella quadrata Foissner (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)
  9. Pseudovorticella sauwaldensis (ref. ID; 2082)
  10. Pseudovorticella sinensis (ref. ID; 7114)
  11. Pseudovorticella sphagni Foissner & Schiffmann, 1974 (ref. ID; 4861) reported year? (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082, 4610)
  12. Pseudovorticella vestita (ref. ID; 4610)

Pseudovorticella chlamydophora (Penard, 1922) Jankowski, 1976 (ref. ID; 4610) reported author and year? (ref. ID; 1629, 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 17-20, mean 18); silverlines from aboral ciliary wreath to scopula (extremes 14-17, mean 16); silverlines ratio 0.94. (ref. ID; 2082)

Pseudovorticella difficilis (ref. ID; 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 25-31, mean 28); silverlines from aboral ciliary wreath to scopula (extremes 14-18, mean 16); silverlines ratio 0.57. (ref. ID; 2082)

Pseudovorticella fasciculata (ref. ID; 2082)

Synonym

Pseudovorticella margaritata f. chlorelligenra (ref. ID; 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 28-32, mean 30); silverlines from aboral ciliary wreath to scopula (extremes 15-21, mean 18); silverlines ratio 0.60. (ref. ID; 2082)

Pseudovorticella monilata (Tatem) (ref. ID; 3698) or (Tatem, 1870) Foissner & Schiffmann, 1974 (ref. ID; 4610) reported author and year? (ref. ID; 1114, 1629, 2082)

Synonym

Vorticella convallaria var. monilata Tatem, 1870 (ref. ID; 4610); Vorticella margaritata Fromental, 1876 (ref. ID; 4610); Vorticella monilata (ref. ID; 2082)

Descriptions

Two contractile vacuoles. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 15-23, mean 19); silverlines from aboral ciliary wreath to scopula (extremes 9-18, mean 14); silverlines ratio 0.74. (ref. ID; 2082)

Pseudovorticella mutans (Penard) (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 24-28, mean 26); silverlines from aboral ciliary wreath to scopula (extremes 16-19, mean 17); silverlines ratio 0.65. (ref. ID; 2082)

Pseudovorticella pseudocampanula Foissner (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 28-33, mean 30); silverlines from aboral ciliary wreath to scopula (extremes 16-18, mean 17); silverlines ratio 0.57. (ref. ID; 2082)

Pseudovorticella quadrata Foissner (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 28-33, mean 31); silverlines from aboral ciliary wreath to scopula (extremes 16-21, mean 17); silverlines ratio 0.55. (ref. ID; 2082)

Pseudovorticella sauwaldensis (ref. ID; 2082)

Descriptions

One contractile vacuole. (ref. ID; 2082)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 18-21, mean 19); silverlines from aboral ciliary wreath to scopula (extremes 8-12, mean 10); silverlines ratio 0.53. (ref. ID; 2082)

Pseudovorticella sphagni Foissner & Schiffmann, 1974 (ref. ID; 4861) reported year? (ref. ID; 3698) reported author and year? (ref. ID; 1114, 2082, 4610)

Descriptions

Two contractile vacuoles. (ref. ID; 2082)
It has 2 contractile vacuoles at opposite sites of the vestibulum and the posterior third of the macronucleus is bent anteriorly. (ref. ID; 4861)

Type specimens deposited

Slides with type and voucher specimens have been deposited in the Oberosterreichische Landesmuseum in Linz (LI), Austria. Relevant specimens are marked by a black ink circle on the cover glass. (ref. ID; 4861)

Measurements

Silverlines from anterior end to aboral ciliary wreath (extremes 25-30, mean 27); silverlines from aboral ciliary wreath to scopula (extremes 8-10, mean 9); silverlines ratio 0.33. (ref. ID; 2082)
Length of zooids 53-70 um (average=59.2, n=6), width at peristomial collar 46-60 um (average=50.5, n=6), maximum postperistomial width 38-48 um (average=43.7, n=6), length of stalk 125-279 um (average=186, n=3), width of stalk 5.3 um (n=1). All peniculi consist of 3 rows of closely spaced basal bodies. Epistom members of swarmer rather distant from anterior end of oral polykinetid. (ref. ID; 4861)