Transeauina (formerly known as Debarya) is distinguished from Mougeotia in having gametangia filled with layers of pectin giving it a stratified appearance.

Temnogametum is a rare genus that is probably restricted to the tropics; it differs from Mougeotia in having spores filled with oil droplets.

[2] Species identification depends on observing the morphology of reproductive structures, called zygospores; this is difficult because they are rarely present.

[7] Chloroplast rotation is mediated by phytochrome molecules located at the plasma membrane, as well as an additional pigment that absorbs blue light.

Although the exact mechanism behind the gradient is unknown, it is known that the chloroplast is moved by F-actin threads attached to the membrane.

Its growth is not optimal under acidic conditions, but Mougeotia can tolerate the heavy metals such as aluminum and zinc that are more biologically available, and is efficient at gathering dissolved inorganic carbon.