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. There is confusion on how to classify Old World mice and rats, the New World mice and rats, and the microtines. The tendency is to regard all three groups as subfamilies of one family - Muridae.