Biological aspects of Omalonyx convexus (Mollusca, Gastropoda, Succineidae) from the Rio Grande do Sul State, Brazil

Biotemas

José Willibaldo Thomé²  Janine Oliveira Arruda¹ 

[1] Escritório de Malacologia e de Biofilosofia

关键词: Omalonyx convexus;    Coloring;    Diet;    Distribution;   

DOI  :  

学科分类：生物科学（综合）

来源: Universidade Federal de Santa Catarina * Centro de Ciencias Biologicas

【 摘 要 】

http://dx.doi.org/10.5007/2175-7925.2011v24n4p95 Omalonyx convexus(Heynemann, 1868) is widely spread throughout the Rio Grande do Sul State, Brazil. The studied specimens presentedin vivo , tegument and mantle coloring in variations between milky-white, orange and beige. The shell presented itself covered by the mantle in different extents; however, it was not completely covered on any of the specimens. The feeding diet is basically constituted by vegetal tissues, although non-vegetal food items were also found. The specimens were found in preserved and in polluted fresh water environments, as well as on natural and artificial substrates. The temperature throughout the day influences their placement on habitat substrates.

【 授权许可】

Unknown