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Evolution of the vestibulolateral lobe of the cerebellum in electroreceptive and nonelectroreceptive teleosts

Evolution of the vestibulolateral lobe of the cerebellum in electroreceptive and... The organization of the vestibulolateral lobe of the cerebellum is described in electroreceptive and closely related nonelectroreceptive teleost fishes. The vestibulolateral lobe includes an eminentia granularis and a lobus caudalis. The eminentia granularis is a lateral line‐recipient, granule cell zone which in weakly electric fish (i.e., electroreceptive fish with an electric organ) has anterior and posterior divisions associated respectively with a mechanoreceptive medial medullary nucles and an electroreceptive lateral line lobe. A lobus caudalis includes a separate granule cell zone—the pars medialis, a molecular layer, and large Purkinje‐like cells. Compared with weakly electric mormyrids, the pars medialis is hypertrophied in weakly electric gymnotoids and electroreceptive silurids. However, the pars medialis is also hypertrophied in nonelectroreceptive teleosts, suggesting it is a granule cell zone not associated with electroreception and perhaps the lateral line system. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Morphology Wiley

Evolution of the vestibulolateral lobe of the cerebellum in electroreceptive and nonelectroreceptive teleosts

Journal of Morphology , Volume 174 (3) – Jan 1, 1982

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References (58)

Publisher
Wiley
Copyright
Copyright © 1982 Wiley Subscription Services
ISSN
0362-2525
eISSN
1097-4687
DOI
10.1002/jmor.1051740307
Publisher site
See Article on Publisher Site

Abstract

The organization of the vestibulolateral lobe of the cerebellum is described in electroreceptive and closely related nonelectroreceptive teleost fishes. The vestibulolateral lobe includes an eminentia granularis and a lobus caudalis. The eminentia granularis is a lateral line‐recipient, granule cell zone which in weakly electric fish (i.e., electroreceptive fish with an electric organ) has anterior and posterior divisions associated respectively with a mechanoreceptive medial medullary nucles and an electroreceptive lateral line lobe. A lobus caudalis includes a separate granule cell zone—the pars medialis, a molecular layer, and large Purkinje‐like cells. Compared with weakly electric mormyrids, the pars medialis is hypertrophied in weakly electric gymnotoids and electroreceptive silurids. However, the pars medialis is also hypertrophied in nonelectroreceptive teleosts, suggesting it is a granule cell zone not associated with electroreception and perhaps the lateral line system.

Journal

Journal of MorphologyWiley

Published: Jan 1, 1982

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