Cothurnia Ehrenberg, 1831 (ref. ID; 2014)
Class Oligohymenophora: Subclass Peritricha: Order Peritrichida: Suborder Sessilina (ref. ID; 2014)
Family Vaginicolidae Kent, 1881 (ref. ID; 1248)

[ref. ID; 2014]
Body elongate, usually trumpet-shaped as in Vaginicola but stouter. Lorica erect, mounted upon a short outer stalk but without valves; sometimes with transverse ridges or folds around them and may contain 1 or 2 zooids. The macronucleus is band or ribbon-shaped. The genus, which was first described by Ehrenberg, is mainly marine but there are about 8 epizooic freshwater species. The genus is most easily confused with Cyclodonta in which the zooid is attached to the lorica via a series of membranes. It could also be mistaken for the following two erect loricate genera, Pseudothuricola and Pyxicola which both have a means of closing the lorica when the animal contracts.
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)


Cothurnia annulata Stokes, 1885 (ref. ID; 1248, 1557, 1620, 1629, 2245, 4610) reported year? (ref. ID; 1618)
Description; In fresh water. (ref. ID; 1618)
Measurements; Lorica about 55 um high. (ref. ID; 1618)
Cothurnia canthocampti Stokes, 1886 (ref. ID; 1335, 1620) reported year? (ref. ID; 1618)
Description; On Canthocamptus minutus. (ref. ID; 1618)
Measurements; Lorica about 80 um high. (ref. ID; 1618)
Cothurnia variabilis Kellicott, 1883 (ref. ID; 1620) reported year? (ref. ID; 1618) reported author and year? (ref. ID; 191)
Description; On the gills of Cambarus spp. (ref. ID; 1618)