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 Cynodonichthys isthmensis (Garman 1895) ( Fig. 9D ). Isthmian Rivulus; Olomina, Alumina, Olomina Saltona, Killi, Saltón, Killi del Istmo Vouchers: UCR 0266-004 (5), 0361-004 (1), 0447-008 (2), 0459-003 (3), 0474-001 (3), 0475-001 (8), 1052-007 (9) and 1058-001 (21); other collections: IBUNAM 13843 (1), 13844 (1), 13845 (1), KU 18700 (1). Distribution: Central America; from southern Honduras to eastern Costa Rica, Atlantic and Pacific drainages; ( Nicaragua ) Co, UI, WK, Pr, GM, KP, Es, BF, IM, To, Sa, SJ, RF and LN (Atlantic); 15–700 masl ; Sec, Pot. Occurrence and conservation status: Nat; LC (2020), population trend unknown. Literature: Astorqui (1975: 156, as Rivulus isthmensis isthmensis —synonym; brief description, including illustrations and an identification key, and information on distribution and ecology), Villa (1982: 143 , as R. isthmensis isthmensis —synonym; detailed description, including illustrations and an identification key, and information on distribution and ecology), Bussing (1998: 176 , as R. isthmensis isthmensis —synonym; brief description, including illustrations and an identification key, and information on distribution, with a map, and ecology), González-Alemán (2006: 95, as Rivulus hildebrandt (Myers 1927) —misspelled and misidentification; brief description, including an illustration, and information on distribution and ecology), van den Berghe (2015: 37 , as Rivulus rubripunctatus (Bussing 1980) —misidentification; listed, including an illustration and information on distribution and ecology) and Angulo (2021: 53 ; listed, including information on distribution).