Carcharhinus obscurus (Lesueur, 1818) .

Dusky Shark. To 4.2 m (13.8 ft) TL (Weigmann 2016). Circumglobal; western Pacific Ocean north to central Japan (Yoshino and Aonuma in Nakabo 2002); Redondo Beach, southern California to Gulf of California (Eschmeyer and Herald 1983); unconfirmed from northern Chile (Ebert et al. 2013). Depth: intertidal to 573 m (1,879 ft) (Hoffmayer et al. 2014). Pazmiño et al. (2019) reported on a number of individuals that were hybrids of C. obscurus and Carcharhinus galapagensis (Snodgrass & Heller, 1905) in the eastern Pacific Ocean.