1. Dept of Biological Sciences, George Washington University, 2029 G St. NW, Washington, DC 20052, USA
2. Dept of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, ON M5S 2C6, Canada
3. Dept of Ichthyology, Smithsonian National Museum of Natural History, 10th St. & Constitution Ave. NW, Washington, DC 20560, USA
4. Dept of Ichthyology, Sam Noble Museum, 2401 Chautauqua Ave, Norman, OK 73072, USA
5. Dept of Biology, University of Oklahoma, 660 Parrington Oval, Norman, OK 73019, USA
6. Dept of Ichthyology, The Academy of Natural Sciences of Drexel University, 1900 Benjamin Franklin Pkwy, Philadelphia, PA 19103, USA
7. Museum of Zoology, University of Michigan, 1105 North University Dr., Ann Arbor, MI 48109, USA