Continental fishes of Nicaragua: diversity, distribution and conservation status; with an annotated and illustrated checklist of species and an identification guide to families Author Angulo, Arturo Escuela de Biología, Museo de Zoología / Centro de Investigación en Biodiversidad y Ecología Tropical (CIBET) and Centro de Author Betts, Joel T. 0000-0002-6018-8995 Department of Fisheries and Wildlife, Michigan State University, 480 Wilson Rd # 13, East Lansing, MI 48824, USA joel. t. betts @ gmail. com; https: // orcid. org / 0000 - 0002 - 6018 - 8995 joel.t.betts@gmail.com Author González-Alemán, Néstor J. Unidad de Gestión Técnica de Proyectos - Oficina de Relaciones Internacionales y de Cooperación Externa (ORICE / UGETEP), Author Castañeda, Edgar 0000-0001-8148-3195 Universidad Americana (UAM, Costado Noroeste Camino de Oriente, Managua, Nicaragua edgar. ecologica @ gmail. com; https: // orcid. org / 0000 - 0001 - 8148 - 3195 edgar.ecologica@gmail.com Author Berghe, Eric Van Den 0000-0001-7566-0415 Department of Environment and Development, Zamorano Biodiversity Center. Zamorano University of Tegucigalpa, P. O. Box 93, Honduras evandenberghe @ zamorano. edu; https: // orcid. org / 0000 - 0001 - 7566 - 0415 evandenberghe@zamorano.edu Author Elías, Diego J. Field Museum of Natural History (FMNH). Chicago, Illinois, United States of America delias @ fieldmuseum. org; https: // orcid. org / 0000 - 0003 - 4215 - 0384 cmcmahan @ fieldmuseum. org; https: // orcid. org / 0000 - 0003 - 2113 - 8554 delias@fieldmuseum.org Author Mcmahan, Caleb D. Field Museum of Natural History (FMNH). Chicago, Illinois, United States of America delias @ fieldmuseum. org; https: // orcid. org / 0000 - 0003 - 4215 - 0384 cmcmahan @ fieldmuseum. org; https: // orcid. org / 0000 - 0003 - 2113 - 8554 delias@fieldmuseum.org Author Matamoros, Wilfredo A. wilmatamoros@yahoo.com text Zootaxa 2023 2023-11-27 5376 1 1 89 https://www.mapress.com/zt/article/download/zootaxa.5376.1.1/52351 journal article 10.11646/zootaxa.5376.1.1 1175-5334 10208788 9ECCB3F7-5481-47C2-8A5A-E9A3F38C31BA Family Polynemidae Rafinesque 1815 ( Fig. 3M ). Threadfins, Tassel-Fishes, Bobos; Bobos, Barbudos Description: Body elongate, compressed; up to 46 cm in length; snout short, conical, translucent, overhangs mouth; mouth moderate, inferior, with bottom lip extending to front, but no top lip; tooth bands of top jaw touching in center; eyes large, longer than snout, with fatty cover, at front of head; preopercle serrated; scales rough; lateral line extends onto caudal fin; pectoral fin low on side, divided in two portions, the upper portion a normal fin, with 12–19 rays, the lower portion, under gills, with 3–16 long, free rays; two well separated dorsal fins, the first one with eight spines and the second one with one spine and 11–15 rays; pelvic fins well behind the pectoral fin base, under the first dorsal; anal fin base short, with three spines and 10–18 rays; caudal fin forked ( Robertson & Allen 2015 ). Distribution: Marine (often brackish), rarely freshwater; worldwide, all tropical and subtropical seas ( Robertson & Allen 2015 ). One genus and three species in Nicaraguan freshwaters.