Louise H. Emmons,¹ Roly Peña Flores,² Sixto Angulo Alpirre,³ Matthew J. Swarner<sup>4

1</sup>Smithsonian Institution, Division of Mammals, NHB 390 MRC 108, P.O. Box 37012, Washington, DC 20013-7012, USA. E-mail: &lt; &gt; emmons.louise@nmnh.si.edu
²Museo de Historia Natural Noël Kempff Mercado, Avenida Irala 565, C.C. 2469, Santa Cruz, Bolivia
³WCS-Bolivia, 349 Calle Bumberque, Santa Cruz de la Sierra, Casilla 6272, Bolivia. E-mail: &lt; &gt; sixtopolus@hotmail.com
⁴Wildlife, Fish, and Conservation Biology Department, University of California – Davis, 1 Shields Avenue, Davis, CA 95616, USA. E-mail: &lt; &gt; mjswarner@ucdavis.edu