- ... that the widely distributed Asian freshwater snail Indoplanorbis exustus (pictured) is an important intermediate host for several trematode parasites?
- ... that the minute land snail Gulella streptostelopsis (shell pictured) may in fact represent an as yet unnamed genus?
- ... that the freshwater snail family Helicostoidae contains only one species?
- ... that within the class Gastropoda there are 33 families that contain species of freshwater snails (one species pictured)?
- ... that the Dutch malacologist Adolph Cornelis van Bruggen (pictured) is an expert in African land snails?