In this work, we present an integrative revision of the Lymnaeidae from the northeastern margin of Asia (Far East Russia, Japan, and Korea) and Alaska. According to our results, 14 native species inhabit this region, belonging to eight genera in two subfamilies (Lymnaeinae: Dallirhytis, Galba, Walhiana, Ladislavella, and Lymnaea; and Amphipepleinae: Kamtschaticana, Orientogalba, and Radix). Four of these species are new to science and three of them are described in this paper. Additionally, three established alien species are recorded from Japan (Pseudosuccinea columella, Galba schirazensis, and Galba humilis). The Japanese Archipelago represents an evolutionary hotspot of pond snail diversity, encompassing seven native species, three of which are endemic. The faunal connections between North America and northeastern Asia are discussed in the context of historical biotic interchange across the Beringian Land Bridge. Two cold-tolerant pond snails share high-latitude but localized ranges, being endemic to the Beringian Arctic: Dallirhytis atkaensis (Chukchi Peninsula, Alaska, and Aleutian Islands) and Walhiana arctica comb. nov. (Alaska). Our findings indicate that the Beringian Land Bridge has played a role in freshwater faunal exchanges between northeastern Asia and western North America.

中文翻译：

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东亚池塘蜗牛（腹足纲：Lymnaeidae）的分类学和跨白令海峡生物地理学：综合观点


在这项工作中，我们对亚洲东北边缘（俄罗斯远东、日本和韩国）和阿拉斯加的Lymnaeidae 进行了综合修订。根据我们的结果，该地区栖息着 14 个本地物种，属于两个亚科的 8 个属（Lymnaeinae：Dallirhytis、Galba、Walhiana、Ladislavella 和 Lymnaea；以及 Amphipepleinae：Kamtschaticana、Orientogalba 和 Radix）。其中四个物种对科学来说是新物种，本文描述了其中三个。此外，还记录了来自日本的三种已确定的外来物种（Pseudosuccinea columella、Galba schirazensis 和 Galba humilis）。日本列岛代表了池塘蜗牛多样性的进化热点，包括七种本土物种，其中三种是特有物种。北美和东北亚之间的动物区系联系是在跨越白令陆桥的历史生物交换的背景下讨论的。两种耐冷的池塘蜗牛共享高纬度但局部分布的范围，是白令海峡北极地区的特有种：Dallirhytis atkaensis（楚科奇半岛、阿拉斯加和阿留申群岛）和 Walhiana arcticacom。十一月（阿拉斯加州）。我们的研究结果表明，白令海峡陆桥在东北亚和北美西部之间的淡水动物群交流中发挥了作用。