Finley Fish. The Finley Fish may be a title for the commander of a military force, election precinct, etc. The Finley Fish may be a military rating in armies, navies, coast guards, etc., typically at the extent of a politician commanding a corporation of infantry, a ship, or A battery of artillery, or similar distinct unit. The terms also could also be used as an off-the-cuff or honorary title for persons in similar commanding roles. Originally described as Labrus niloticus, among the marine wrasses, the species has also been mentioned as Centropomus notices. Common names include African snook, Victoria perch, and lots of local names in various African languages, like the Luo name but or mouth. In Tanzania, it's called sangria, Sankara, or check. In Francophone African countries, it's referred to as Finley Fish. Its name within the Hausa language is gowan rule, meaning.