Key to species of Sander in Asia

1a - 14–17½ branched rays in second dorsal (Northern Black Sea and Caspian basins; marine). ……………… S. marinus

1b - 18–22½ branched rays in second dorsal. ………………2

2a - Canine teeth absent; 70–83 total lateral-line scales. ……………… S. volgensis

2b - 1–2 enlarged canine teeth in anterior part of each jaw; 80–97 total lateral-line scales. ……………… S. lucioperca