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Hermaphroditic smalleyed roundray (Urotrygon microphthalmum) from north-eastern Brazil

Published online by Cambridge University Press:  02 May 2013

Jones Santander-Neto  and
Rosangela Lessa
Jones Santander-Neto*
Affiliation:
Programa de Pós-graduação em Biologia Animal, Universidade Federal de Pernambuco, Rua Prof. Moraes Rego, 1235, Cidade Universitária, CEP 50670-420, Brazil Laboratório de Dinâmica de Populações Marinhas—DIMAR, Departamento de Pesca e Aqüicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, CEP 52171-900, Brazil
Rosangela Lessa
Affiliation:
Programa de Pós-graduação em Biologia Animal, Universidade Federal de Pernambuco, Rua Prof. Moraes Rego, 1235, Cidade Universitária, CEP 50670-420, Brazil Laboratório de Dinâmica de Populações Marinhas—DIMAR, Departamento de Pesca e Aqüicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, CEP 52171-900, Brazil
*
Correspondence should be addressed to: J. Santander-Neto, Laboratório de Dinâmica de Populações Marinhas—DIMAR, Departamento de Pesca e Aqüicultura, Universidade Federal Rural de Pernambuco, Rua Dom Manuel de Medeiros s/n, Dois Irmãos, CEP 52171-900, Brazil email: jonessn@gmail.com
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Abstract

In February 2010, a specimen of Urotrygon microphthalmum (total length = 232.4 mm; disc width = 123.1 mm; total weight = 81.97 g) was caught having the external appearance of a male with an abnormality (atrophied left clasper and missing right clasper). Internally, the specimen had only female reproductive organs. The left ovary had yellow follicles (≤ 2.7 mm) and the left uterus had a yellow ovum (5.85 mm). These characteristics indicate that the individual captured was a case of abnormal hermaphroditism, classified as a pseudo-hermaphrodite.

Keywords

elasmobranchanomalieshermaphroditismUrotrygonidae
Type
Research Article
Information
Marine Biodiversity Records , Volume 6 , 2013 , e60
Copyright
Copyright © Marine Biological Association of the United Kingdom 2013

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References

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