prototypus, Proctostegus Nardo [G. D.] 1827:7, unnumbered pl., Figs. 1-5 [De Proctostego; ref. 3145] Italy, Adriatic Sea (Mediterranean Sea). No types known. Named Proctostegus proctostegus in Nardo 1827: col. 477, 484 [ref. 19740], in Nardo 1827:27, 35 [ref. 3146], and in Nardo 1831:61 [ref. 26490]. •Synonym of Luvarus imperialis Rafinesque 1810 -- (Topp 1973:476 [ref. 7209], Décamps 1990:1008 [ref. 19497], Bannikov & Tyler 1995:20 [ref. 22553]). Current status: Synonym of Luvarus imperialis Rafinesque 1810. Luvaridae. Habitat: marine.