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）的分类学和跨白令吉生物地理学：综合观点


在这项工作中，我们提出了来自亚洲东北缘（远东俄罗斯、日本和韩国）和阿拉斯加的 Lymnaeidae 的综合修订。根据我们的结果，该地区有 14 个本地物种，属于两个亚科的 8 个属（Lymnaeinae：Dallirhytis、Galba、Walhiana、Ladislavella 和 Lymnaea;和 Amphipepleinae：Kamtschaticana、Orientogalba 和 Radix）。其中 4 个物种是科学界的新物种，其中 3 个在本文中进行了描述。此外，日本记录了三种已确定的外来物种（Pseudosuccinea columella、Galba schirazensis 和 Galba humilis）。日本列岛是池塘蜗牛多样性的进化热点，包括 7 种本地物种，其中 3 种是地方物种。北美和东北亚之间的动物群联系在白令吉陆桥上的历史生物交换的背景下进行了讨论。两种耐寒的池塘蜗牛共享高纬度但局部分布范围，是白令吉北极特有的：Dallirhytis atkaensis（楚科奇半岛、阿拉斯加和阿留申群岛）和 Walhiana arctica comb。11 月。（阿拉斯加）。我们的研究结果表明，白令吉陆桥在东北亚和北美西部之间的淡水动物群落交流中发挥了作用。