Anatomia e histologia do aparelho reprodutor masculino de Pomacea canaliculata (Lamarck, 1822) (Mollusca, Gastropoda, Pilidae)

• Autor(a) principal: Mesquita,Eliana de Fátima Marques de
• Data de Publicação: 1990
• Outros Autores: Coelho,Arnaldo Campos dos Santos, Santos,Jefferson Andrade dos
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Revista Brasileira de Zoologia (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751990000200020

In this paper the authors give an anatomical and histological analysis of the male reproductive system of Pomacea canaliculata (Lamarck, 1822). Anatomically, the testis is better evidentiated than the ovary. In the structure of the testis a great number of very small channels converges to a single one. The male copulatory organs result of transformations that take place in the inner surface on the palial membrane. Histologically, the testis of immature males shows seminiferous ducts with round egg-shaped forms. In their lumens we could notice masses of cells that will originate spermatozoids. The penis has a conjunctive muscular sheath that can be seen in van Gieson's coloured preparations.