Indoplanorbis exustus... that the widely distributed Asian freshwater snail Indoplanorbis exustus(pictured) is an important intermediate host for several trematode parasites?
Gulella streptostelopsis... 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?
Pomacea bridgesii... that within the class Gastropoda there are 33 families that contain species of freshwater snails(one species pictured)?
A. C. van Bruggen... that the Dutch malacologist Adolph Cornelis van Bruggen(pictured) is an expert in African land snails?