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亚马孙双脐螺 (Biomphalariaamazonica)是由Paraense在 1 96 4年从亚马孙河和内格罗河汇流处的马瑙斯郊外以及Careiro岛上收集的。在接下来的几年里 ,其他一些学者的调查结果将亚马孙双脐螺的分布范围扩大到巴西的其它一些州。 1 997年 ,一种小扁卷螺在玻利维亚的圣克鲁斯地区?
The Biomphalaria mazonica was collected by Paraense in 1964 on the outskirts of Manaus and on the island of Careiro from the confluence of the Amazon and Negro rivers. In the following years, the findings of other scholars expanded the distribution of Amazonas to a number of other states in Brazil. In 1997, a small flat snail in the Santa Cruz region of Bolivia?