Platybelone argalus (Lesueur, 1821). Keeltail Needlefish. To 50 cm (19.7 in) SL (Collette and Parin in Whitehead et al. 1986). Circumglobal; western Pacific Ocean north to Japan (Aizawa in Nakabo 2002); Islas San Benito (28°28’N, 115°35’W) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California) and Bahía de Sebastian Vizcaino (28°15’N, 114°10’W) (Personal communication: Scripps Institution of Oceanography Fish Collection, La Jolla, California), central Baja California to Chile (Pequeño 1989), including lower Gulf of California (Collette in Fischer et al. 1995) and Islas Galápagos (Grove and Lavenberg 1997). Marine and brackish waters (Fricke et al. 2020); depth: surface to 5 m (17 ft) (Robertson and Allen 2002).