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Revista Brasileira de Zoologia

Print version ISSN 0101-8175

Rev. Bras. Zool. vol.14 no.3 Curitiba Sept. 1997 

Aspectos ultraestruturais do espermatozóide de Natica marochiensish (Gmelin) (MOllusca, Gastropoda) do litoral norte do Brasil


Ultrastructural aspects of the spermatozoon of Natica marochiensish (Gmelin) (Mollusca, Gastropoda) of the North littoral of Brazil



Edilson MatosI; Patricia MatosII; Graça CasalIII; Carlos AzevedoIV

IDepartamento de Biologia Animal, Histologia e Embriologia, Faculdade de Ciências Agrárias do Pará. 66077-530 Belém, Pará, Brasil
IIDepartamento de Histologia e Embriologia, Centro de Ciências Biológicas, Universidade Federal do Pará. 66059-900 Belém, Pará, Brasil
IIILaboratório de Biologia Celular, Instituto Superior de Ciências da Saúde. 4580 Paredes, Portugal
IVDepartamento de Biologia Celular, Universidade do Porto. 4050 Porto, Portugal




Spermatozoa of Natica marochienssish (Gmelin, 1791) is described by light and electron microscopy. The spermatozoon is of the primitive type with head contains a conical acrosomal complex with an acrosomal vesicle of dense matrix having a basis occupied by the subacrosomal space. The middle piece shows the centriolar complex surrounded by mitochondria and the tail contains the axoneme with a 9+2.

Key words: Mollusca, Gastropoda, Natica marochiensish, ultrastructure, spermatozoa



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AGRADECIMENTOS. À Profa. Dra. Yoko Wakabara (Universidade de São Paulo) pela identificação da espécie. Ao Sr. João Carvalheiro pelo serviço iconográfico. Trabalho parcialmente subsidiado pela Universidade do Porto/Portugal, FCAP, UFPa, CEPNOR/IBAMA, e Fundação Engenheiro António de Almeida (Portugal).



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Recebido em 04.VII.1996; aceito em 04.IX.1997.

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