Many accounts are incomplete although new information is being added continuously.
Errors do occur. Users are cautioned to refer back to the original cited source to assess completeness and correctness before using the information. Web updates are intermittent, not continuous, therefore some dynamic information such as legal status may not be absolutely current. Chaco Wash. Enduring populations exist in the Rio Grande drainage south from the head of Elephant Butte Reservoir and the lower Pecos River south of Carlsbad Municipal Reservoir. Attempts are being made to establish the species in other waters of the state.