Genus: Euglenas in a close fitting lorica; a single long flagellum extends through small opening; lorica with or without short collar; yellow to brown (How to know the protozoa, 1979). Lorica often possesses numerous spines, composed of ferric hydroxide impregnated with brown manganic compound (Kudo, 1966).

T. armata var. ??	T. armata var. ??	Trachelomonas sp.	Trachelomonas sp.
Trachelomonas sp.	Trachelomonas sp.	T. hispida v. hispida
T. hispida	T. hispida v. crenulatocollis	T. playfairii	T. playfairii
T. superba	Trachelomonas sp.	T. klebsi
T. volvocina	Trachelomonas sp.	T. dybowski
Trachelomonas sp.	Trachelomonas sp.	Trachelomonas sp.	Trachelomonas sp.