<b>Anatomy of the male reproductive system of <em>Phrynops geoffroanus</em> (Testudines: Chelidae)</b> - doi: 10.4025/actascibiolsci.v33i4.8091

  • Silvia Rosana Pagliarini Cabral UNESP - IBILCE
  • Lia Raquel de Souza Santos UNESP - IBILCE
  • Lilian Franco-Belussi UNESP - IBILCE
  • Rodrigo Zieri UNESP - IBILCE
  • Carlos Eduardo Saranz Zago UNESP - IBILCE
  • Classius de Oliveira UNESP - IBILCE
DOI: https://doi.org/10.4025/actascibiolsci.v33i4.8091
Keywords: Testudines, Phrynops geoffroanus, reproductive system, testes, epididymis, efferent ductules, deferent ducts, penis

Abstract

The reproductive system of male Phrynops geoffroanus adults is macroscopically described and the variation in testicular biometry is evaluated. A pair of oval testes is connected by the efferent ductules to the epididymis, which continue as deferent ducts, which emerge in the penis. The volume of the gonads showed the highest averages during spring and summer months. GSI varied significantly throughout the year, with the highest averages observed in the months that correspond to the end of spring and the beginning of summer, when the reproduction of the species takes place, and the lowest averages were seen in winter, suggesting a cyclical testicular activity.

Downloads

Download data is not yet available.

Author Biographies

Silvia Rosana Pagliarini Cabral, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Lia Raquel de Souza Santos, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Lilian Franco-Belussi, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Rodrigo Zieri, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Carlos Eduardo Saranz Zago, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Classius de Oliveira, UNESP - IBILCE
Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP - IBILCE Departamento de Biologia
Published
2011-05-05
How to Cite
Cabral, S. R. P., Santos, L. R. de S., Franco-Belussi, L., Zieri, R., Zago, C. E. S., & Oliveira, C. de. (2011). <b>Anatomy of the male reproductive system of <em>Phrynops geoffroanus</em> (Testudines: Chelidae)</b&gt; - doi: 10.4025/actascibiolsci.v33i4.8091. Acta Scientiarum. Biological Sciences, 33(4), 487-492. https://doi.org/10.4025/actascibiolsci.v33i4.8091
Issue
Vol 33 No 4 (2011)
Section
Animal Morphology & Physiology

DECLARATION OF ORIGINALITY AND COPYRIGHTS

I Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. 

The copyrights belong exclusively to the authors. Published content is licensed under Creative Commons Attribution 4.0 (CC BY 4.0) guidelines, which allows sharing (copy and distribution of the material in any medium or format) and adaptation (remix, transform, and build upon the material) for any purpose, even commercially, under the terms of attribution.

Read this link for further information on how to use CC BY 4.0 properly.

 

Crossref
Scopus
Google Scholar
Europe PMC

 

0.6
2019CiteScore
 
 
31st percentile
Powered by  Scopus

 

 

0.6
2019CiteScore
 
 
31st percentile
Powered by  Scopus