Amphibolidae is one of the most abundant families of gastropods in estuarine environments of south-eastern Australia. However, the range limits of the species of Salinator, one of the family’s two genera in the region, remain unclear partly due to uncertainty of identifications based solely on shell morphology. Insufficient data have been collected to address questions regarding the genetic variability of any of the species of Salinator. Here, DNA sequences from a segment of the cytochrome c oxidase subunit I and 28S ribosomal RNA genes were collected to investigate the distribution and variation of the three Salinator species in the region, these being S. fragilis, S. rhamphidia and S. tecta. The results demonstrate a large range extension in S. rhamphidia and suggest that S. tecta may have limited distribution in Tasmania. In contrast to previously-studied estuarine Mollusca in the south-eastern coasts of the mainland and Tasmania, S. rhamphidia has regional differentiation. There is evidence of genetic disequilibrium within S. fragilis, suggesting that it may presently comprise contributions from two distinct sets of populations.

中文翻译：

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澳大利亚东南部盐碱化种（Panpulmonata：Amphibolidae）的变异和分布的遗传评估

在澳大利亚东南部的河口环境中，两栖纲科是腹足纲动物中最丰富的科之一。但是，该地区两个家族之一的盐化器物种的范围限制仍然不清楚，部分原因是仅基于壳形态的鉴定不确定性。收集到的数据不足以解决有关盐碱化物种任何物种的遗传变异性的问题。在这里，收集了来自细胞色素c氧化酶亚基I和28S核糖体RNA基因一段的DNA序列，以研究该地区三种盐碱化菌物种的分布和变异，它们分别是脆弱的链球菌，鼠伤性沙门氏菌和tec.tecta。结果表明，在鼠伤寒沙门氏菌中有较大范围的扩展，并表明tec。tecta在塔斯马尼亚州的分布可能有限。与大陆和塔斯马尼亚岛东南沿海先前研究过的河口软体动物相反，鼠伤寒沙门氏菌具有区域差异。有证据显示脆弱类链球菌内的遗传不平衡，表明它目前可能包括来自两个不同种群的贡献。