Up to the present, the continental mollusk fauna of Nicaragua had been addressed in a sporadic, indirect way, and within the frame of very general publications, most of them now out-dated. The present paper comprises the first application experience in Nicaragua, and apparently in the Neotropical region, of the UTM cartographic method to the study of distribution and taxonomy of the country’s snail fauna. The species list of taxa present in the Nicaraguan Pacific Slope is given; it includes 104 species distributed over 52 genera and 30 families. For each species, field and bibliographic data regarding type locality, geographic distribution in the country, geographic extension outside the country, habitat, commentaries on morphology or distribution, habitat, and references, are presented.
Keywords: Nicaragua, land snails, freshwater snails