Ganula is a genus of gastropods belonging to the family Hygromiidae.

[2] The shells are usually small, yellowish, and opaque, with five or five-and-a-half whorls.

[1] Specifically, the genus is defined by a genital duct with a very short proximal vagina, and certain other features, such as microstructures on the shell.

Some specimens were recorded "intensively parasitized by small nematodes".

[3] The species has been recorded as a host of Angiostrongylus cantonensis, a parasitic nematode.