Results 11 to 20 of about 2,449 (227)
Data supporting phylogenetic reconstructions of the Neotropical clade Gymnotiformes [PDF]
Data is presented in support of model-based total evidence (MBTE) phylogenetic reconstructions of the Neotropical clade of Gymnotiformes “Model-based total evidence phylogeny of Neotropical electric knifefishes (Teleostei, Gymnotiformes)” (Tagliacollo et
Victor A. Tagliacollo +4 more
doaj +6 more sources
Dimorfismo sexual em Siluriformes e Gymnotiformes (Ostariophysi) da Amazônia Sexual dimorfism in Amazonian Siluriformes and Gymnotiformes (Ostariophysi) [PDF]
No presente trabalho é feito um levantamento dos casos de dimorfismo sexual em Siluriformes e Gymnotiformes. Este levantamento se restringe às formas Neotropicais, com ênfase mais especificamente, às da Amazônia.
Lúcia H. Rapp Py-Daniel +1 more
doaj +5 more sources
Species diversity of gymnotiform fishes (Gymnotiformes, Teleostei) in Colombia
Neotropical electric fishes (Teleostei, Gymnotiformes), also called American knifefishes, are an important component of the nocturnal ichthyological fauna in Middle and South America.
Javier Alejandro Maldonado-Ocampo +1 more
doaj +14 more sources
Published as part of Phillip, Dawn A. T., Taphorn, Donald C., Holm, Erling, Gilliam, James F., Lamphere, Bradley A. & López-Fernández, Hernán, 2013, Annotated list and key to the stream fishes of Trinidad & Tobago, pp.
Phillip, Dawn A. T. +5 more
openaire +3 more sources
Gymnotiformes Gymnotidae Gymnotus carapo Linnaeus Pomphorhynchus ...
Hernández-Orts, Jesús S. +5 more
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Order Gymnotiformes Family Gymnodontidae Electrophorus electricus Scutalatus magniancoratus (BR) Gymnotus carapo Diechodactylus joaberi (BR) Family Hypopomidae Brachyhypopomus brevirostris (= Hypopomus brevirostris) Urocleidoides hypopomi (AR)
Cohen, Simone C., Kohn, Anna
openaire +2 more sources
X1X1X2X2/X1X2Y sex chromosome systems in the Neotropical Gymnotiformes electric fish of the genus Brachyhypopomus [PDF]
Several types of sex chromosome systems have been recorded among Gymnotiformes, including male and female heterogamety, simple and multiple sex chromosomes, and different mechanisms of origin and evolution.
Adauto Lima Cardoso +2 more
doaj +2 more sources
Sexual dimorphism in the electric knifefish, Gymnorhamphichthys rondoni (Rhamphichthyidae: Gymnotiformes) [PDF]
Sexual dimorfism refers to morphological differences between males and females of a species. It may be a result of different selection pressures acting on either or both sexes and may occur in any sexually-reproducing dioecious species, including fishes.
Elisa Queiroz GARCIA, Jansen ZUANON
doaj +4 more sources
The Active Electric Sense of Pulse Gymnotiformes
Pulse Gymnotiformes generate discrete pulsatile electric discharges to polarize nearby objects, which in turn projects electric images onto a cutaneous electroreceptor mosaic.
Caputi, A.A.
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The untold story of the caudal skeleton in the electric eel (ostariophysi: gymnotiformes: electrophorus). [PDF]
Alternative hypotheses had been advanced as to the components forming the elongate fin coursing along the ventral margin of much of the body and tail from behind the abdominal region to the posterior margin of the tail in the Electric Eel, Electrophorus ...
Carlos David de Santana +2 more
doaj +2 more sources

