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Preliminary report on the terrestrial malacofauna of Puerto Rico and associated islands.
There has been no comprehensive inventory of the malacofauna of the island of Puerto Rico since Henry van der Schalie's 1948 book, and none on the islands of Culebra, and Vieques. Carlos Aguayo created a checklist of Puerto Rican snails and slugs in 1966, with a number of undescribed species. The snails of the islands of Mona and Monito were inventoried by Fred Thompson in 1987. Little work has been done in the US Virgin Islands. Since van der Schalie's work, Puerto Rico has undergone considerable change, and in many if not most of the area has been drastically altered by human activity, including deforestation, agriculture, and urbanization. Many of the native or endemic species' distributions have been greatly diminished, and the ranges of invasive and synanthropic species have expanded to replace them. Since the discovery of the giant African snail (Lissachatina fulica) in Guadeloupe in 1984, it became necessary to make an inventory of the native species throughout the West Indies before the inevitable spread of this serious pest.