l >M 1976, Albert Schwartz and several students working with him made extensive collections of mammals (ca. 2,000 specimens), reptiles and amphibians, birds, and butterflies in the West Indies. Schwartz's private collection of mammals from the West Indies is among the most comprehensive and important mammal collections from the region, vet much of it has never been reported in the scientific literature. Schwartz's original intent was to fully document all of the terrestrial mammals oi the West Indies. In P>S C >, Schwartz transferred his mammal collection of some 6,500 specimens to the University of Kansas, and included in that collection were more than 1,400 specimens from the West Indies. It is our purpose herein to present a catalogue of the West Indian mammals assembled by Albert Schwartz, to titter critical comments on the taxonomic status o\ several species, as well as to report new biological information based on his specimens and field observations. Hie Albert Schwartz Collection represents a unique sample of West Indian mammals that includes new island records and significant series ot poorly known species that contribute to systematic and /oogeographic studies of the region. Detailed measurements and ecological information are presented in accounts of the following species: one species of marsupial, one species of noctilionid bat, five species of mormoopids, IN species of phyllostomids, three species of natalids, three species ( >i vesperti lion ids, five species of molossids, three species of capromvid rodents, two species of dasyproctid rodents, and one herpestid carnivore. Discussions are focused primarily on the Antillean populations ot these taxa and when sufficient material is available taxonomic recommendations are presented.