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RAZORBACK SUCKER <br />(Xyrauchen texanus) <br />Recovery Plan <br />Prepared by: <br />Harold M. Tyus <br />Center for Limnology <br />University of Colorado at Boulder <br />Boulder, CO 80309-0334 <br />for <br />Region 6 <br />U.S. Fish and Wildlife Service <br />Denver, Colorado <br />Approved: ~, ~ <br />Regio al rector, Region U. S. Fish and Wildlife Service <br />Date: ~2.. ~ <br />