Megachasma pelagios Taylor, Compagno, & Struhsaker, 1983 .

Megamouth Shark. To 7.1 m (23.3 ft)TL (Watanabe and Papastamatiou 2019). Circumglobal; western Pacific Ocean north to northern Japan (Ebert et al. 2013); Hawai’i (Ebert et al. 2013); southern California (Compagno et al. in Fischer et al. 1995); off Punta Eugenia, Baja California (Castillo-Géniz et al. 2012); Peru (Kelez et al. 2020) . Depth: 8–1,000 m (26–3,280 ft) (min.: Ebert et al. 2013; max.: Weigmann 2016), and as shallow as 5 m (16 ft) in benthic, coastal waters (Ebert et al. 2013).