Carcharhinus leucas (Valenciennes 1839) (Fig. 6A). Bull Shark; Tiburón Toro, Madrecazón, Tiburón Sarda

Vouchers: UCR 1082-001 (1) and 1089-001 (1); other collections: MCZ 35896 (1). Distribution: Circumglobal in tropical and subtropical waters; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) To, Sa, SJ, RF and LN (Atlantic); 0–31 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; NT (2009), population trend unknown. Literature: Meek (1907: 103, as Carcharhinus nicaraguensis Gill 1877 —synonym; brief description, including an identification key, and information on distribution and ecology), Fowler (1923: 24, as Eulamia milberti (Müller & Henle 1839) —misidentification; listed, including information on distribution), Thorson et al. (1966: 385; detailed description, taxonomic status, and information on distribution and ecology), Astorqui (1975: 43, also as C. nicaraguensis —synonym; brief description, including illustrations and an identification key, and information on distribution and ecology), Villa (1982: 60; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 51; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology), Robertson & Allen (2015: 95; detailed description, including illustrations, and information on distribution, with a map, and ecology), Robertson & Van Tassell (2019: 95; detailed description, including illustrations, and information on distribution, with a map, and ecology) and Angulo (2021: 19; listed, including information on distribution).