guentheri, Muraenosaurus Osório [B.] 1909:14, Pl. 1 (figs. 2-4) [Memorias do Museu Bocage, Lisboa Fasc. 1; ref. 3317] Off Cape Espichel, Portugal, depth about 800 meters. Holotype: MB 2066 (lost in fire in 1978). •Synonym of Nettastoma melanura Rafinesque 1810 -- (Blache et al. 1973:236 [ref. 7185] as melanurum, Smith et al. 1981:543 [ref. 6158], Smith 1989:605 [ref. 13285], Smith 1990:174 [ref. 13454] as melanurum). Current status: Synonym of Nettastoma melanura Rafinesque 1810. Nettastomatidae. Habitat: marine.