New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist Author Angulo, Arturo 0000-0002-4587-1446 arturo.angulosibaja@ucr.ac.cr text Zootaxa 2021 2021-12-23 5083 1 1 72 journal article 2794 10.11646/zootaxa.5083.1.1 8e076bdf-97f5-4fc4-8c63-6ecc98c3dc05 1175-5326 5800630 14FA7505-F1F8-47F3-878C-AC349B50671D Ophisternon aenigmaticum Rosen & Greenwood, 1976 . Obscure Swamp Eel; Anguila , Anguila de Pantano, Anguila de Suampo, Anguila de Lodo, Anévila, Anguila Falsa, Culebra, Anguila de Pantano Oscura. Distribution: Global: North America; from southern Mexico to northern Costa Rica, including Cuba and Trinidad and Tobago, Atlantic drainages; Costa Rica : RF (Atlantic), 43 m . a.s.l., Sec, Pot. Occurrence and conservation status: Nat, LC. References: Angulo et al. (2013: 998; listed, including taxonomic information and distributional data).