WILLIAM D. NEWMARK,^* ERIC A. RICKART<sup>**


*</sup>William D. Newmark (e-mail: bnewmark@umnh.utah.edu) is a research curator, at the Utah Museum of Natural History, University of Utah, Salt Lake City, UT 84112.
^**Eric A. Rickart (e-mail: rickart@umnh.utah.edu) is a curator of vertebrates, at the Utah Museum of Natural History, University of Utah, Salt Lake City, UT 84112.