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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Urnula

Urnula Claparede & Lachmann, 1859 (ref. ID; 2013)

Class Kinetofragminophora: Subclass Suctoria: Order Suctorida: Suborder Exogenina (ref. ID; 2013)

[ref. ID; 2013]
Body approximately oval situated within, but not filling, an irregularly cup-shaped lorica. The posterior region of the lorica is constricted into a stalk-like attachment point which is usually bent to one side. There is an apical rounded or triangular aperture through which 1 or 2 (but up to 5) long active non-capitate tentacles protrude. The apical end of the lorica is narrower than the central region. The nucleus is oval and centrally situated. There are one or more contractile vacuoles. The organism is usually reported to be found growing on the stalks of Epistylis plicatilis.
Quote; Colin R. Curds "British and other freshwater ciliated protozoa Part I Ciliophora: Kinetofragminophora" Cambridge University Press, 1982 (ref. ID; 2013)
  1. Urnula epistylides (ref. ID; 191)
  2. Urnula epistylidis Claparede & Lachmann, 1859 (ref. ID; 3477) reported year? (ref. ID; 1618)
  3. Urnula turpissima Matthes, 1971 (ref. ID; 3689) reported author and year? (ref. ID; 191)

Urnula epistylidis Claparede & Lachmann, 1859 (ref. ID; 3477) reported year? (ref. ID; 1618)

Descriptions

On Epsitylis, Dendrosoma, etc. (ref. ID; 1618)
The Urnula is pyriform, 25-35 um (usually 30 um) in breadth and 45-60 (usually 50 um) in height and has a thin test, a contractile vacuole located on the posterior half of the body, and one, rarely two tentacles, very flexible and contractile. Exogenous budding had been observed in some specimens. (ref. ID; 3477)

Measurements

Up to 80 um long. (ref. ID; 1618)