Anatomy and homology of the accessory electric organs of the toothless knifefishes (Rhamphichthyoidea: Gymnotiformes)

2018 ◽  
Vol 93 (6) ◽  
pp. 1059-1068 ◽  
Author(s):  
Júlia Giora ◽  
Tiago P. Carvalho
Keyword(s):  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jun Xu ◽  
Xiang Cui ◽  
Huiyuan Zhang

AbstractThe electric eel is a unique species that has evolved three electric organs. Since the 1950s, electric eels have generally been assumed to use these three organs to generate two forms of electric organ discharge (EOD): high-voltage EOD for predation and defense and low-voltage EOD for electrolocation and communication. However, why electric eels evolved three electric organs to generate two forms of EOD and how these three organs work together to generate these two forms of EOD have not been clear until now. Here, we present the third form of independent EOD of electric eels: middle-voltage EOD. We suggest that every form of EOD is generated by one electric organ independently and reveal the typical discharge order of the three electric organs. We also discuss hybrid EODs, which are combinations of these three independent EODs. This new finding indicates that the electric eel discharge behavior and physiology and the evolutionary purpose of the three electric organs are more complex than previously assumed. The purpose of the middle-voltage EOD still requires clarification.


1975 ◽  
Vol 250 (15) ◽  
pp. 6101-6106
Author(s):  
S J Edelstein ◽  
W B Beyer ◽  
A T Elderfrawi ◽  
M E Elderfrawi

Micron ◽  
2008 ◽  
Vol 39 (7) ◽  
pp. 1027-1035 ◽  
Author(s):  
María Prado Figueroa ◽  
Facundo Barrera ◽  
Nora N. Cesaretti

1966 ◽  
Vol 155 (1) ◽  
pp. 103-110 ◽  
Author(s):  
Thomas Szabo
Keyword(s):  

2004 ◽  
pp. 767-809
Author(s):  
B. G. Kapoor ◽  
Bhavna Khanna
Keyword(s):  

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