Atherinella chagresi (Meek & Hildebrand 1914) . Chagres Silverside; Pejerrey de Chagres, Sardina

Vouchers: Not available. Distribution: Western Atlantic Ocean; from northern Nicaragua to Central Panama; entering estuaries and littoral lagoons and ascending river courses; (Nicaragua) IM and To (Atlantic); 0–30 masl; Per, Dia, Amp. Occurrence and conservation status: Nat; LC (2020), population trend decreasing. Literature: Bussing 1998: 240; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology), Robertson & Van Tassell (2019: 3234; detailed description, including illustrations, and information on distribution, with a map, and ecology) and Angulo (2021: 51; listed, including information on distribution).