[1] Cowie and Thiengo (2003)[3] suggested that the latter might deserve full species status, and the two taxa have been confirmed as distinct species by genetic analyses.

[1] The type locality of Pomacea diffusa is in the city of Santa Cruz de la Sierra, Bolivia, although the species is widespread throughout the Amazon Basin.

[1] It lacks a channeled suture, and overlaps in size with the Pomacea paludosa.

[1] The egg masses have an irregular honeycombed appearance, like those of Pomacea haustrum, but are smaller and have a tan to salmon color, although they are white when freshly laid.

[1] It is a part of ornamental pet trade for freshwater aquaria.