The Panamic Sergeant Major, Abudefduf troschelii, is a member of the Damselfish or Pomacentridae Family, and is known in Mexico as petaca banderita. The Panamic Sergeant Major is a non-migratory species found in shallow water over and within rocky reef structures buffeted by wave action at depths up to 15 m (50 feet). While breeding, males turn a very dark metallic blue to attract females to their nesting site, then guard and aerate the eggs.