Wikipedia
Veronicellidae
The Veronicellidae, also known by their common name the leatherleaf slugs, are a family of pulmonate terrestrial slugs.
The herbivorous molluscs occur mainly in the tropical and subtropical areas of America, Asia and Africa.
They act as intermediate hosts of the rat lung worm Angiostrongylus costaricensis, and act as a vector for other human diseases. They also cause significant damage to crops.