Brycon costaricensis Angulo & Gracián-Negrete 2013 (Fig. 6M). Costa Rican Machaca, Machaca, Macabí Tetra; Machaca, Sábalo, Sabalete, Machaca del Atlántico, Machaca de Costa Rica

Vouchers: UCR 0265-002 (1), 0268-001 (47), 0457-002 (54), 0461-010 (91), 0551-003 (1), 1051-018 (21), 1052-024 (5), 1055-004 (60), 1059-001 (1), 1065-007 (1), 1068-001 (1), 1086-001 (2), 3115-003 (1) and 3122-006 (1); FMNH 5916 (2), 5917 (2), 5918 (3), 6221 (2) and 85034 (10); LSUMZ 15304 (1); other collections:ANSP 124131 (4), 124139 (3), CAS 61398 (2), 61516 (3), 61758 (2), IBUNAM 13685 (1), LACM 2468 (1), TU 202736 (6), UMMZ 165773 (1), 188127196933 (1), 196934 (1), 196940 (1), 196941 (1), 199621 (1), 199632 (1), 199642 (1), 199644 (1), 199655 (1), 204005 (1) and 204012 (1). Distribution: Central America; from northern Nicaragua to northeastern Costa Rica, Atlantic drainages; (Nicaragua) Pr, GM, KP, Es, BF, IM, To, Sa, SJ, RF and LN (Atlantic); 5–420 masl; Pri, Pot. Occurrence and conservation status: Nat; LC (2020), population trend stable. Literature: Meek (1907: 109, as Brycon dentex Günther 1860 —misidentification; brief description, including an identification key, and information on distribution and ecology), Fowler (1923: 26, as Brycon guatemalensis Regan 1908 —misidentification; brief description, including information on distribution), Astorqui (1975: 89, as B. guatemalensis —misidentification; brief description, including illustrations and an identification key, and information on distribution and ecology), Villa (1982: 103, as B. guatemalensis —misidentification; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 92, as B. guatemalensis, in part—misidentification; brief description,including illustrations and an identification key, and information on distribution, with a map, and ecology), González-Alemán (2006: 41, as B. guatemalensis —misidentification; brief description, including an illustration, and information on distribution and ecology), Gros & Miguel-Frithz (2010: 97, as B. guatemalensis —misidentification; brief description, including illustrations, and information on distribution and ecology, plus indigenous science and ethnoichthyology), Angulo & Gracián-Negrete (2013: 255; original description), van den Berghe (2015: 36, as B. guatemalensis —misidentification; listed, including an illustration and information on distribution and ecology) and Angulo (2021: 25; listed, including information on distribution).