The specimens collected by Preiss were not limited to plants: they included birds, reptiles, insects and molluscs. The molluscs were described by Karl Theodor Menke and published in Hanover in 1843 titled Molluscorum Novae Hollandiae Specimen.
Preiss's collection included a diverse array of specimens beyond plants, including birds, reptiles, insects, and molluscs. The description of the molluscs was handled by Karl Theodor Menke in 1843, as seen in Molluscorum Novae Hollandiae Specimen.