Histiona Voigt, 1902 (ref. ID; 7295) reported year? (ref. ID; 1618)
Family Histionidae (ref. ID; 7492)

[ref. ID; 1618]
With lorica; but body without attaching filament; anterior end with lips and sail-like projection; fresh water. (ref. ID; 1618)

[ref. ID; 7277]
Posterior of the cell capable of pronounced pseudopodial extension well beyond the edge of the lorica; trailing flagellum held closely to the boy and not readily visible. (ref. ID; 7277)

[ref. ID; 7295]
[Trophic cells]: Trophic cells reside in a hyaline lorica. The dorsal side of the cell is not closley appressed to the lorica, the posterior end of the cell is elevated with respect to the anterior and there is a prominent posterior ventral "sail" (a posterior prolongation of the lip), and the lorica lacks scales. Three species have been recorded from freshwaters of Europe and North America. The type is H. velifera (Voigt, 1901) Pascher 1943 (Zachariasia velifera Voigt, 1901 = Histiona zachariasi Voigt, 1902 (Pascher 1943; Petersen and Hansen 1961)). The species we know most about is H. aroides Pascher, 1943 (Mylnikov 1984, 1989; Nicholls 1984). The third species is H. campanula Penard 1921, transferred by Flavin & Nerad (1993) to Reclinomonas. (ref. ID; 7295)
[Cysts]: Walled cysts typically have an apical plug. (ref. ID; 7295)

Histiona zachariasi Voigt, 1902 (ref. ID; 7295) reported year? (ref. ID; 1618)
Description; Lorica cup-like; without stalk; standing water. (ref. ID; 1618)
Measurements; Lorica about 13 um long; oval body 13 um long; flagellum long. (ref. ID; 1618)