About Lethrinus genivittatus Valenciennes, 1830
Lethrinus genivittatus, commonly known as the longspine emperor, threadfin emperor, lance emperor, or lancer, is a fish species belonging to the genus Lethrinus and the family Lethrinidae. This species was first formally described by Achille Valenciennes in 1830. The International Union for Conservation of Nature has assessed Lethrinus genivittatus as a species of least concern. It inhabits marine and brackish waters, and is native to the Indo-West Pacific region.