Gymnotus arapaima

William G. R. Crampton, Nathan R. Lovejoy & James S. Albert, 2003, Gymnotus ucamara: a new species of Neotropical electric fish from the Peruvian Amazon (Ostariophysi: Gymnotidae), with notes on ecology and electric organ discharges., Zootaxa 277, pp. 1-18 : 13

Gymnotus arapaima (56 specimens, 48-460 mm). -

Brazil: Amazonas: Rio Solimões, Lago Calado, Município Manaus, approx. 03°07'S, 60°01'W, INPA 6387 (2, 255-395) ; Cidade de Manaus, Igarapé do Quarenta, Município Manaus, approx. 03°06'S, 60o01'W, INPA 10376 (1, 255) ; Rio Solimões-Japurá confluence, Mamirauá Sustainable Development Reserve (MSDR), Cano do Lago Mamirauá, 03°05.22'S, 64°48.03'W, INPA 11514 (5, 145-457) , INPA 18389 (1, 55) ; Rio Tefé, Lago Tefé, Igarapé Curupira, 03°26.02'S, 64°43.78'W, INPA 18390 (1, 55) ; Rio Tefé, Lago Tefé, Estrada Agrovila, swamp in forest nr. Igarapé Curupira, 03°26.02'S, 64°43.78'W, INPA 18391 (2, 48-51) ; Rio Negro, Lower Rio Demini, c. 30 km upstream mouth Rio Aracá, Município Barcelos, approx. 00°23'N, 62°51'W, MCP uncat (1, 272) ; Rio Tefé, nr. Cabeçeira do Lago Tefé, 03°41.39'S, 64°59.13'W, MZUSP 75165 (1, 190) ; Rio Solimões-Japurá confluence, MSDR, Jarauá lake system, Ressaca do Caetono, 02°50.22'S, 64°55.79'W, MZUSP 75166 (1, 133) ; Rio Tefé, same locality as INPA 18390, MZUSP 75169 (1, 102) ; Rio Tefé, same locality as MZUSP 75165, MZUSP 75170 (1, 147) , MZUSP 75171 (1, 128) , MZUSP 75172 (1, 158) , MZUSP 75173 (1, 160) , MZUSP 75174 (1, 128) , MZUSP 75175 (1, 129) , MZUSP 75176 (1, 141) ; Rio Tefé, same locality as INPA 18390, MZUSP 75177 (1, 129) ; Rio Tefé, Lago Tefé, Igarapé Repartimento, 03°24.46’S, 64°44.17'W, MZUSP 75178 (1, 123) ; Rio Solimões-Japurá confluence, MSDR, Ressaca do Pau, 03°02.30'S, 64°51.96'W, MZUSP 75179 (1, 107) . All localities from Rio Tefé and MSDR in the municipalities of Tefé and Alvarães respectively. Mato Grosso: Rio Aripuanã, Igarapé do Castanhal, Município Aripuanã, INPA 6390 (part) (11, 128-460) . Rondônia: Rio Madeira, Rio Jamari, nr. UHE Samuel, Município Porto Velho, approx. 08°26'S, 63°30'W, INPA uncat. ( POLO 463) (2, 115-195) , INPA uncat. ( POLO 482) (2, 435-460) ; Rio Machado, Nazaré, Município Jí-Paraná, 10°4'59"S, 62°17'59"W, INPA uncat. ( POLO 626) (1, 147) ; Rio Madeira, same locality as INPA uncat. ( POLO 463) , INPA uncat. ( POLO 872) (11, 160- 252) , INPA uncat. ( POLO 895) (1, 185) , INPA uncat. ( POLO 951), (2, 183-187) .