Julianaweg 10, 1241VW Kortenhoef, the Netherlands.
Dept. of Genetics and Evolution, University of Geneva, Quai Ernest Ansermet 30, CH-1211 Geneva 4, Switzerland.
Eur J Protistol. 2023 Aug;90:126014. doi: 10.1016/j.ejop.2023.126014. Epub 2023 Aug 24.
Non-marine monothalamous foraminifera are common in freshwater and soil habitats. They comprise a poorly-known group lacking sufficient information about diversity, morphology, reproduction, distribution and ecology. Based on an integrative morphological and molecular approach we describe a new family, a new genus and six new species of freshwater monothalamids from different localities in the Netherlands and France. We establish Astroperula as a new genus of organic walled freshwater foraminifera that contains two species, Astroperula dumacki and Astroperula parvipila. Furthermore, two new agglutinated freshwater monothalamids are described and illustrated, Limnogromia leanneae and Lacogromia pawlowskii, one new organic walled, Velamentofex dujardini, and a new naked monothalamid, Haplomyxa retiforma. Additional information is provided about a special form of cell division in Claparedellus lachmannii and L. leanneae, and feeding behavior in cultures of V. dujardini. Morphological observations are added for an unidentified Limnogromia sampled from the Netherlands and two types of Lacogromia sampled from an alpine region in the French Pyrenees and a karst sinkhole in Bosnia and Herzegovina. The present study provides additional insight into the ecology, diversity and occurrence of freshwater monothalamids and emphasizes the fact that a combination of morphological and molecular methods is necessary to clearly distinguish species in this group.
非海相有孔虫常见于淡水和土壤生境。它们是一个鲜为人知的群体，缺乏关于多样性、形态、繁殖、分布和生态的足够信息。基于综合形态学和分子方法，我们描述了来自荷兰和法国不同地点的一个新的有孔虫科、一个新的属和六个新的淡水单室有孔虫物种。我们将 Astroperula 确立为一个新的有机壁淡水有孔虫属，包含两个物种，Astroperula dumacki 和 Astroperula parvipila。此外，还描述并图示了两个新的胶结淡水单室有孔虫，Limnogromia leanneae 和 Lacogromia pawlowskii，一个新的有机壁的 Velamentofex dujardini，以及一个新的裸单室有孔虫，Haplomyxa retiforma。还提供了关于 Claparedellus lachmannii 和 L. leanneae 中特殊细胞分裂形式以及 V. dujardini 培养物中摄食行为的更多信息。对从荷兰采集的未鉴定的 Limnogromia 和从法国比利牛斯山脉的高山地区以及波斯尼亚和黑塞哥维那的一个喀斯特落水洞采集的两种类型的 Lacogromia 进行了形态学观察。本研究为进一步了解淡水单室有孔虫的生态学、多样性和出现情况提供了帮助，并强调了在该群体中明确区分物种需要结合形态学和分子方法的事实。
