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.
Members of the family can be found in the Central African Republic, Kenya, the Cameroon, tropical West Africa, Mexico, the Democratic Republic of the Congo, Thailand, southern Asia, southern China, Taiwan, Cuba, the Highland Rainforests of Puerto Rico, Florida, Dominica, Hawaii, the islands of the Indian Ocean, Australia, Samoa and Guyana.