Gymnotus carapo, Linnaeus, 1758

Koerber, Stefan, Guimarães, Erick Cristofore, Brito, Pâmella Silva de, Bragança, Pedro Henrique Negreiros de & Ottoni, Felipe Polivanov, 2022, Checklist of the freshwater fishes of Maranhão, Brazil (CLOFFBR-MA)., Ichthyological Contributions of PecesCriollos 79, pp. 1-94 : 43-44

G. carapo Linnaeus, 1758

Gymnotus carapo Linnaeus, 1758

Gymnotus carapo caatingaensis Craig, Crampton & Albert, 2017 records

Itapecuru o Albert & Crampton (2003): listing o Lima (2017): listing o Abreu et al. (2019): listing o Aguiar et al. (2019): listing

Mearim o Soares (2013): listing o Abreu et al. (2019): listing o Guimarães et al. (2020b): specimens o Guimarães et al. (2020d): listing o Guimarães et al. (2021a): specimens o Guimarães et al. (2021b): listing

Munim o Lima (2017): listing o Oliveira et al. (2020): specimens

Periá o Abreu et al. (2019): listing o Brito et al. (2020): specimens

Preguiças o Lima (2017): listing

Tocantins o Guimarães et al. (2020d): listing o Guimarães et al. (2021a): specimens

Turiaçu o Abreu et al. (2019): listing

Gymnotidae - unconfirmed species for Maranhão state requiring a verification based on voucher material

Gymnotus capanema Milhomem et al., 2012 | in Abreu et al. (2019) and Aguiar et al. (2019) for Itapecuru basin

Gymnotidae - species considered not to be distributed in Maranhão

Gymnotus electricus Linnaeus, 1766 | sub Gymnotus electricus in Spix & Martius (1828), and sub Electrophorus electricus in Lima (2017) and Abreu et al. (2019) | Santana et al. (2019)