Three new species of Pareuchiloglanis

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Three new species of Pareuchiloglanis

Post by bekateen » Sun Dec 22, 2019 4:25 am

Dao, W., Li, X., Yang, H. F., & Zhou, W. (2019). Pareuchiloglanis (Teleostei: Sisoridae) from the Pearl River, China with description of three new species. Journal of fish biology, 2019, 1-14. https://doi.org/10.1111/jfb.14178

https://onlinelibrary.wiley.com/doi/ful ... /jfb.14178
PDF: https://onlinelibrary.wiley.com/doi/pdf ... /jfb.14178
Abstract
We describe three new species of Pareuchiloglanis. Based on a comparison of 17 valid species of Pareuchiloglanis, the genus can be divided into two groups contingent on their gill opening size and the anus position. One group, which we call the large gill opening group, has a large gill opening extending to the base of the first pectoral-fin element; the anus is obviously closer to pelvic-fin insertion than the anal-fin origin; this group includes five species distributed in the Red and Pearl Rivers, China. The other group has a small gill opening extending only to the middle base of the pectoral-fin elements; the anus is usually located at the midpoint of the pelvic-fin insertion to the anal-fin origin or slightly behind. This group includes the other 12 species, which are distributed in the Mekong and Yangtze Rivers. The large-gill-opening group can be divided into two sub-groups based on the length of the caudal peduncle. One sub-group has a long caudal-peduncle and the distance from the anal-fin origin to caudal-fin base is greater than distance from the pelvic-fin insertion. This sub-group is only distributed in the Pearl River drainage. Another sub-group has a short caudal peduncle and the distance from the anal-fin origin to the caudal-fin base is typically smaller than the distance from the pelvic-fin insertion. This sub-group is only distributed in the Red River basin of China and Vietnam. The former will be called the large-gill-opening group with long caudal peduncle in the text and only includes one species P. longicauda. During our ongoing taxonomic work of specimens collected from Nanpan-jiang and Beipan-jiang (upper Pearl River drainage in Yunnan, China), some Pareuchiloglanis specimens that had the characters of the large-gillopening group with long caudal peduncle represent three undescribed species.
  • KEYWORDS large gill-opening, long caudal peduncle, new species, Pareuchiloglanis, Pearl River, Sisoridae
Pareuchiloglanis arcuatum sp. nov.
Pareuchiloglanis posteranalis sp. nov.
Pareuchiloglanis salicesbarba sp. nov.
Attachments
Pareuchiloglanis arcuatum sp. nov.
Pareuchiloglanis arcuatum sp. nov.
Pareuchiloglanis posteranalis sp. nov.
Pareuchiloglanis posteranalis sp. nov.
Pareuchiloglanis salicesbarba sp. nov.
Pareuchiloglanis salicesbarba sp. nov.
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