Many splits have been included, and other potential or historical splits are at least highlighted (even where highly dubious).
In cases of conflict, generic and specific names generally follow a descending order of precedence:
The subspecies which regularly occur within the regional limits are listed for all polytypic taxa (double-click on individual cells to expand contents).
Subspecific names mostly follow Dickinson (2003), unless superseded by authoritative works published after its cut off date (e.g. HBW Vols. 7+, family monographs, BNA Online updates etc.).
Subspecies of uncertain validity are enclosed in quotes.