2011
DOI: 10.1590/s1679-62252011000300005
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Abstract: Based on the examination of the two available paratypes and recently collected material, we present new data and information on the electric knifefish Apteronotus magdalenensis, a species endemic to the río Magdalena-Cauca basin in Colombia. Since Miles' description in 1945, this species was not collected until recent field work at the Torrents of Honda and additional localities. We present data on the external morphology, morphometrics, pigmentation and electric organ discharges (EODs), of A. magdalenensis. W… Show more

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Cited by 4 publications
(2 citation statements)
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“…In contrast, sex differences in EODf in Amazonian populations of A. albifrons are modest (~50Hz), with more extensive overlap between the sexes (Ho et al, 2013). In the majority of other apteronotid species that have been studied, EODf does not differ between the sexes (Table2) Maldonado-Ocampo et al, 2011;Petzold and Smith, 2012b;Zhou and Smith, 2006). EODf thus shows every possible pattern of sexual dimorphism across apteronotid species, and within species, populations also vary in sexual dimorphism.…”
Section: Sex Differences In Eod Frequencymentioning
confidence: 93%
“…In contrast, sex differences in EODf in Amazonian populations of A. albifrons are modest (~50Hz), with more extensive overlap between the sexes (Ho et al, 2013). In the majority of other apteronotid species that have been studied, EODf does not differ between the sexes (Table2) Maldonado-Ocampo et al, 2011;Petzold and Smith, 2012b;Zhou and Smith, 2006). EODf thus shows every possible pattern of sexual dimorphism across apteronotid species, and within species, populations also vary in sexual dimorphism.…”
Section: Sex Differences In Eod Frequencymentioning
confidence: 93%
“…Meristic data for species in Apteronotus and other Gymnotiformes genera were taken by direct examination and/or from the literature (Albert, 2001;Bernt & Albert, 2017;Bernt et al, 2018Bernt et al, , 2020Campos-da-Paz, 1995, 1999Evans et al, 2017a;Fernández-Yépez, 1968;Hulen et al, 2005;Hilton et al, 2007;Hilton & Cox Fernandes, 2017;Lundberg et al, 2013;Mago-Leccia, 1994;Maldonado-Ocampo et al, 2011;de Santana, 2002de Santana, , 2003, 2005de Santana & Cox Fernandes, 2012;de Santana & Lehmann, 2006;de Santana & Crampton, 2007, 2010, 2011de Santana & Vari, 2009, 2010Schultz, 1949;Steindachner, 1881;Triques, 2011;.…”
Section: Methodsmentioning
confidence: 99%