The present study of the gastropod Zootecus insularis found in mangroves of Karachi, Pakistan is the first report of this species from coastal habitat. Although, the species is a land snail, widely distributed in arid and semiarid lands of many countries including Pakistan, and other nearby countries like Afghanistan and India, its presence in marine wetland habitat is reported from Pakistan in the present study. While studying the benthic fauna of the mangrove swamps of Avicennia marina, fifteen empty shells of the species were found in intertidal muddy region of Korangi Creek and Sand Spit backwaters, Karachi. It is distributed mostly along intertidal zones, more commonly in high and low tidal zones during an average tidal height of 0.5 m. The presence of empty shells of Zootecus insularis in the mangroves sediments is probably, a consequence of a passive transport by external sources.

中文翻译：

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蜗牛在卡拉奇红树林中的局部散布（Ehrenberg，1831）（Gastropoda：Subulinidae）贝壳

在巴基斯坦卡拉奇的红树林中发现的腹足动物Zootecus insularis的最新研究是该物种在沿海栖息地的首次报道。尽管该物种是蜗牛，但广泛分布在包括巴基斯坦以及阿富汗和印度等其他邻国的许多国家的干旱和半干旱地区，但据本研究报道，该物种存在于海洋湿地栖息地中。在研究Avicennia滨海红树林沼泽底栖动物区系时，在科兰吉河和卡拉奇的沙嘴回水潮间带泥泞地区发现了该物种的十五个空壳。它主要沿潮间带分布，在平均潮汐高度为0.5 m时更常见于高潮带和低潮带。空壳的存在红树林沉积物中的insoleteus insularis可能是外部来源被动运输的结果。