1. Announcement

   Announcement Pages: 1 - 2

2. Megachiropteran Evolution Studied with 12S rDNA and c-mos DNA Sequences

   • D. J. Colgan
   • P. da Costa

   OriginalPaper Pages: 3 - 22

3. A Phylogeny of the Neotropical Nectar-Feeding Bats (Chiroptera: Phyllostomidae) Based on Morphological and Molecular Data

   • Bryan C. Carstens
   • Barbara L. Lundrigan
   • Philip Myers

   OriginalPaper Pages: 23 - 53

4. Habitat, Niche, and Evolution of Sirenian Mating Systems

   • Paul K. Anderson

   OriginalPaper Pages: 55 - 98

5. Phylogenies of Flying Squirrels (Pteromyinae)

   • Richard W. Thorington Jr
   • Diane Pitassy
   • Sharon A. Jansa

   OriginalPaper Pages: 99 - 135

6. The Postcranial Morphology of Ptilocercus lowii (Scandentia, Tupaiidae): An Analysis of Primatomorphan and Volitantian Characters

   • Eric J. Sargis

   OriginalPaper Pages: 137 - 160

7. Extrinsic Snout Musculature in Afrotheria and Lipotyphla

   • Howard P. Whidden

   OriginalPaper Pages: 161 - 184