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. The whole species listing was made on May 19,1987. This species was listed as a Federal Candidate Category 2 species. This species inhabits loose gravelly areas of streams and arroyos in drier portions of its range and along sandy banks of quiet water in other areas.