1. Corix Plains Institute, University of Oklahoma, Five Partners Place, 201 Stephenson Parkway, Norman, OK 73019 (BG, JFK)
2. Colegio de Postgraduados, Km 36.5 Carr. Federal México-Texcoco, Montecillo, Texcoco, Edo. De México 56230, México (JLA)
3. Oklahoma Biological Survey, University of Oklahoma, 111 East Chesapeake Street, SC Building 134, Norman, OK 73019 (BG, PC, JFK)
4. Department of Integrative Biology, University of Colorado Denver, Science Building 2074, Denver, CO 80217 (AC)