lugubrosus, Esox Lesueur [C. A.] in Cuvier & Valenciennes 1846:338 [Histoire naturelle des poissons v. 18; ref. 1011] Crabb-Orcher [Crab Orchard], Cumberland County, Tennessee, U.S.A. Holotype (unique): whereabouts unknown. Holotype: Collection of M. Troost, Professor of Mineralogy and Chemistry at College of Nashville, Tennessee [Nashville State Community College] (1 stuffed specimen, 91 cm total length) (whereabouts unknown). Description based on Lesueur's notes and paintings in Muséum d'Histoire Naturelle, Le Havre. •Synonym of Esox masquinongy Mitchill 1824 -- (Didier Bechu, pers. comm. June 2026, based on Lesueur paintings in Muséum d'Histoire Naturelle, Le Havre). Current status: Synonym of Esox masquinongy Mitchill 1824. Esocidae: Esocinae. Habitat: freshwater.