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| Gomes,Suzete R.; Silva,Rosane S. da; Gil,Guacira M.; Thomé,José W.. |
| The population growth of Simpulopsis ovata (Sowerby, 1822) from the Centro de Pesquisas e Conservação da Natureza - Pró-Mata, São Francisco de Paula, Rio Grande do Sul, Brazil, was studied along eleven months of 1996. Two discontinuous age classes were identified. The first one, with a monthly growth rate of 1.55 mm, was reproductively mature during April and May. The second one appeared after the previous group and had a monthly growth rate of 0.44 mm. The fact that no adults from the two age classes were found together is a characteristic of a semelparous species. New insights about its shell, pallial cavity and reproductive system are given. This is the first record of S. ovata for the State of Rio Grande do Sul. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simpulopsis; Semelparity; Anatomy; Conquiliometry; Biological cycle. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000300005 |
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| Silva,Letícia F. da; Thomé,José W.. |
| Simpulopsis promatensis e S. gomesae, duas novas espécies para São Francisco de Paula, Rio Grande do Sul, Brasil, são descritas. São apresentadas a conquiliologia, conquiliometria e morfologia das partes moles, incluindo mandíbula, rádula, sistemas reprodutor e palial. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Simpulopsis; Novas espécies; Anatomia; Morfologia; Conquiliometria. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000200008 |
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