Echinochasmus mirus Mendheim, 1940 (original description)
Echinochasmus squamatus Mendheim, 1940 (original description)
Echinoparyphium ichthyophilum Mendheim, 1940 (original description)
Echinostoma hospitale Mendheim, 1940 accepted as Petasiger hospitale (Mendheim, 1940) Skrjabin & Bashkirova, 1956 accepted as Petasiger phalacrocoracis (Yamaguti, 1939) Skrjabin & Bashkirova, 1956 (original description)
Himasthla multilecithosa Mendheim, 1940 (original description)
Paryphostomum carbonis Mendheim, 1940 accepted as Petasiger carbonis (Mendheim, 1940) Tkach, Kudlai & Kostadinova, 2016 (original description)
Pegosominae Odhner, 1910 (additional source)
Petasiger coronatus Mendheim, 1940 accepted as Echinochasmus coronatus (Mendheim, 1940) Bisseru, 1957 (original description)
Stephanoprora gracilis Mendheim, 1940 accepted as Mesorchis gracilis (Mendheim, 1940) Cajiao-Mora & Bullard in Cajiao-Mora, Dutton, Jacobs, Beytell, Netherlands, Du Preez & Bullard, 2025 (original description)
Stephanoprora pseudodenticulata Mendheim, 1940 accepted as Mesorchis pseudodenticulatus (Mendheim, 1940) Skrjabin & Baschkirova, 1956 (original description)
Velamenophorus Mendheim, 1940 accepted as Echinochasmus Dietz, 1909 (original description)
Velamenophorus oligolecithosus Mendheim, 1940 accepted as Echinochasmus oligolecithosus (Mendheim, 1940) (original description)