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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.16 no.1 Curitiba Mar. 1999

http://dx.doi.org/10.1590/S0101-81751999000100004 

Identificação sexual através do estudo anatômico do sistema urogenital em recém-eclodidos e jovens de Trachemys dorbignyi (Duméril & Bibron) (Reptilia, Testudines, Emydidae)

 

Sexual identification using anatomical study of urogenital system in hatchlings and juveniles of tracHemys dorbignyi (Duméril & Bibron) (Reptilia, Testudines, Emydidae)

 

 

Adriana MalvasioI; Norma GomesII; Eduardo Cunha FariasIII

IDepartamento de Zoologia, Instituto de Biociências, Universidade de São Paulo. Rua do Matão, Travessa 14 321, 05508-900 São Paulo, São Paulo, Brasil
IIMuseu de Zoologia, Universidade de São Paulo. Avenida Nazaré 481, 04263-000 São Paulo, São Paulo, Brasil
IIIInstituto de Ciências Biomédicas, Universidade de São Paulo. Avenida Professor Lineu Prestes 1524, 05508-900 São Paulo, São Paulo, Brasil

 

 


ABSTRACT

Individuals of Trachemys dorbignyi (Duméril & Bibron, 1835) less than 12 months old are examined for sexual identification through anatomical study of urogenital system. Histological analysis is used to confirm sexual identification. It is concluded that accurate sexual identification is possible in hatchlings using gonadal morphology. Differences between testes and ovaries are clear so histological analysis is necessary for this species only in case of doubts.

Key words: Testudines, Trachemys dorbignyi, urogenital system, sexual identification


 

 

Texto completo disponível apenas em PDF.

Full text available only in PDF format.

 

 

AGRADECIMENTOS. Ao diretor da Fundação Parque Zoológico de São Paulo, Dr. Adayr Mafuz Saliba, ao chefe do Setor de Répteis, Mario Borges da Rocha e ao Dr. Flavio de Barros Molina, pelo fornecimento do material e apoio recebido. Ao Dr. Flavio de Barros Molina, agradecemos também pela leitura, sugestões ao manuscrito e pelas comunicações pessoais. Ao diretor do Museu de Zoologia da Universidade de São Paulo, Dr. José Luís M. Leme, pelo uso das instalações e aos demais funcionários, pelo apoio recebido. A Maria Tereza Osório Mallmann, pelas comunicações pessoais. A capes, pela Bolsa de Mestrado concedida à Adriana Malvasio.

 

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Recebido em 27.VI.1997; aceito em 25.I.1999.

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