Gymnotoidei

 
National Institutes of Health

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1997
1997
Extensive nucleolus organizer region polymorphism in Gymnotus carapo (Gymnotoidei, Gymnotidae).
An investigation was conducted on six populations of Gymnotus carapo from the Upper Parana river system in Brazil. A wide… (More)
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1996
1996
Fluorescencein situ hybridization with rDNA probes on chromosomes of two nucleolus organizer region phenotypes of a species ofEigenmannia (Pisces, Gymnotoidei, Sternopygidae)
Nucleolus organizer regions (NORs) were analysed in two related and geographically close populations ofEigenmannia sp. 1 (Pisces… (More)
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1996
1996
A molecular and morphological perspective on the phylogenetic relationships of the otophysan fishes.
We examined the phylogenetic relationships among the major lineages of otophysan fishes (Cypriniformes, Characiformes, Siluroidei… (More)
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1984
1984
Aerial Respiration in the Banded Knife Fish Gymnotus carapo (Teleostei: Gymnotoidei)
 
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1978
1978
Neuronal gap junctions and morphologically mixed synapses in the spinal cord of a teleost, Sternarchus albifrons (gymnotoidei)
Spinal cord motoneurons in the gymnotld, Sternarchus albifrons, were studied electron m~croscopically with special reference to… (More)
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1978
1978
“Naked” spinal cord on a non-segmented baton-like bony structure in the tail of the electric fish Eigenmannia virescens (Gymnotoidei)
The caudal spinal cord of Eigenmannia virescens is not enclosed in a neural canal of the vertebral column. In fact, a segmented… (More)
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1977
1977
Variations in the frequency response of electroreceptors dependent on receptor location in weakly electric fish (Gymnotoidei) with a pulse discharge
Variations in electric organ discharge (EOD) pulse shape and variations in electroreceptor frequency response characteristics at… (More)
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1977
1977
Deficit in object detection (electrolocation) following interruption of cerebellar function in the weakly electric fish,Apteronotus albifrons
Neural units in the cerebella of electrosensitive gymnotid fish respond to objects which distort the fish's electric field 1-4… (More)
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1974
1974
Electrolocation and jamming avoidance in aHypopygus (Rhamphichthyidae, Gymnotoidei), an electric fish with pulse-type discharges
Hypopygus fires its electric organ in short pulses of less than 1 msec duration, at a variable rate between 60 and 100 Hz. While… (More)
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Highly Cited
1973
Highly Cited
1973
Electrolocation of objects in the electric fishEigenmannia (Rhamphichthyidae, Gymnotoidei)
The electric fish,Eigenmannia, is able to sense objects which differ in electrical conductivity from the surrounding water by… (More)
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