Ophryoglena

Ophryoglena Ehrenberg, 1831 (ref. ID; 2014)

Class Oligohymenophora: Subclass Hymenostomata: Order Hymenostomatida (ref. ID; 2014)

[ref. ID; 2014]
Medium- to large-sized ciliate, oval to pyriform in outline, transparent. The oral aperture is situated in the anterior quarter of the body, and is characteristically the shape of the concha of the right human ear with a small posterior projection similar to the tragus of the ear. The buccal cavity contains an undulating membrane and 3 membranelles which are arranged helically. On the left of the oral aperture there is a refringent body, shaped like a watch glass, often with a pigment spot on its convex side. The spot is green-yellow in life and strains deeply with iron haematoxylin and safranin and its location is used as a character for the identification of the species. The somatic ciliation is dense with many kineties running longitudinally down the body (except on one species where they spiral, Canella and Rocchi-Canella, 1976). There is a definite pre-oral suture. 1 or 2 contractile vacuoles open laterally to the right of the oral aperture. The macronucleus is circular or elliptical in outline, strongly flattened and more or less folded on itself. Careful observation is required not to attribute a sausage or horseshoe shape to the nucleus of the genus.
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)

[ref. ID; 2575]
Ophryoglena, some species of Tetrahymena and Prorodon, and other histophagous Ciliates, attracted by the fresh tissues, have a typical life cycle, through the stages of theront, trophont, tomont, tomites, theronts, which represent characteristic physiological states, i.d.: search for food, its ingestion, digestion and assimilation, and reproduction. The morphological distinction of these stages, the possibility of getting them easily, or to modify at will their functional behavior, render these histophagous Ciliates, particularly Ophryoglena, valuable cells. (ref. ID; 2575)

Ophryoglena acuminata Ehrenberg, 1833
See; Frontonia acuminata (ref. ID; 4611)
Ophryoglena atra Ehrenberg, 1833
See; Frontonia atra (ref. ID; 4611)
Ophryoglena atra Liberkuhn, 1856 (ref. ID; 1622, 3116) reported year? (ref. ID; 1618) reported author and year? (ref. ID; 4611)
Ophryoglena bacterocaryon (ref. ID; 191)
Ophryoglena catenula Savoie, 1966 (ref. ID; 3725)
Ophryoglena citreum Claparede & Lachmann, 1858 (ref. ID; 1622)
Ophryoglena collini Lichtenstein, 1921 (ref. ID; 1622) reported year? (ref. ID; 1618)
Ophryoglena flava Ehrenberg, 1833 (ref. ID; 1622) reported author and year? (ref. ID; 4611)
Ophryoglena flavicans Ehrenberg, 1831 (ref. ID; 1622)
Ophryoglena hypertrophica (ref. ID; 2575)
Ophryoglena inquieta (ref. ID; 1622)
Ophryoglena intestinalis Rossolimo, 1926 (ref. ID; 1622) reported year? (ref. ID; 1618)
Ophryoglena macrostoma Kahl, 1928 (ref. ID; 1622)
Ophryoglena magna Maupas, 1883
See; Frontonia leucas (ref. ID; 1622)
Ophryoglena maligna Penard, 1922 (ref. ID; 1622)
Ophryoglena marginata Greeff (ref. ID; 1622)
Ophryoglena marina Burkovsky, 1970 (ref. ID; 2112 original paper)
Ophryoglena media Mugard (ref. ID; 3698)
Ophryoglena mucifera Mugard, 1948 (ref. ID; 4072) reported author and year? (ref. ID; 191)
Ophryoglena oblonga Gajewskaja, 1927 (ref. ID; 1622) reported author and year? (ref. ID; 4611)
Ophryoglena parasitica Andre, 1909 (ref. ID; 1622) reported year? (ref. ID; 1618)
Ophryoglena pectans (ref. ID; 191)
Ophryoglena pelagica Gajewskaja (ref. ID; 1219)
Ophryoglena pyriformis Rossolimo, 1926 (ref. ID; 1622) reported year? (ref. ID; 1618)
Ophryoglena singularis (ref. ID; 2575)
Ophryoglena tigrina Penard, 1922 (ref. ID; 1622)
Ophryoglena utriculariae (ref. ID; 1622, 4611)
Ophryoglena viridis Penard, 1922 (ref. ID; 1622)
Ophryoglena vorax Smith, 1897 (ref. ID; 1622)
See; Frontonia leucas (ref. ID; 1622)