Abstract
The morphology of the Baikalian Alona labrosa Vasiljeva & Smirnov, 1969 (Chydoridae, Anomopoda, Branchiopoda) is redescribed, based on the type and on new material. A. labrosa is a remarkable species that shows many traits which are unique or rarely observed in Alona, and are a mix of primitive and advanced characters. A close relationship between A. labrosa and the groundwater species A. phreatica Dumont, 1983 was revealed. It is probable that these two species, possible together with some other, will need to be allocated into a subgenus or even genus in the future. However, more detailed investigations of other marginal species of Alona are necessary for understanding the position of A. labrosa among Aloninae.
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Sinev, A.Y., Kotov, A.A. Redescription of Alona labrosa Vasiljeva & Smirnov, 1969 (Chydoridae, Anomopoda, Branchiopoda). Hydrobiologia 439, 125–139 (2000). https://doi.org/10.1023/A:1004102810361
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DOI: https://doi.org/10.1023/A:1004102810361