ISSN:
0362-2525
Keywords:
Life and Medical Sciences
;
Cell & Developmental Biology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Medicine
Notes:
Gymnarchus niloticus, one of the less-well-known electroreceptive teleost fishes, is the only African mormyriform fish with a wavelike or tone electric organ discharge. For Gymnarchus, this is the first detailed description of the lateral line lobe, vestibulolateral lobe, cerebellum, and midbrain torus semicircularis - central electrosensory structures. Brain organization in Gymnarchus closely resembles that of mormyrids. In particular, the lateral line lobe is a bilateral structure with three cortical zones - ventral, dorsal, medial - and a fourth central zone of large cells. The convergent evolution of the electric sense of mormyriform and gymnotoid fish, and its central representation, is discussed.
Additional Material:
13 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/jmor.1051740306
