Type locality and species identity of Pareuchiloglanis sinensis (Hora & Silas) with a description of a new species of the genus from the upper Yangtze River basin in southern China

Abstract

The genus Pareuchiloglanis, distributed in the Salween, Mekong, Red, Pearl and Yangtze River basins in China, Laos, Myanmar and Vietnam, consists of 20 valid species and 5 uncertain species. This study provided a taxonomic revision to Pareuchiloglanis occurring in the Yangtze River. According to the results of a morphological comparison, the type locality of Pareuchiloglanis sinensis was updated to the Nanpan‐jiang (the upper Pearl River) basin; five species were identified in Pareuchiloglanis from the Yangtze River basin. Specimens formerly identified as Pareuchiloglanis sinensis from this basin were described as a new species, Pareuchiloglanis chui sp. nov. Moreover, Pareuchiloglanis tianquanensis was synonymized with Pareuchiloglanis sichuanensis. This study provided a key to these two species and three others (Pareuchiloglanis anteanalis, Pareuchiloglanis hupingshanensis and Pareuchiloglanis robusta) from the Yangtze River basin, including information about their geographical distribution. These findings provide an insight into the evolution, distribution and taxonomy of this genus for future studies.

A freshwater mussel species reflects a Miocene stream capture between the Mekong Basin and East Asian rivers

“…There are examples of East Asian fish genera, which cross the Mekong drainage divide, with one or several species being endemic to the Upper Mekong. For instance, representatives of Pareuchiloglanis species inhabit the Upper and Middle Yangtze, Red, and Pearl River basins and at the same time the Mekong drainage (Li et al 2020). The same distributional patterns are typical for another fish genus, Vanmanenia, which occurs in the Upper Yangtze, Pearl, and Red River drainages and the Upper Mekong (Lancangjiang) (Li et al 2019).…”

Redefinition of the Glyptonsternine genus Pareuchiloglanis (Teleostei: Sisoridae), with descriptions of three new genera

“…1 (type locality: Wudu, Zhouqiu, Wenxian and Kangxian in Gansu Prov., China; Yanjin in Yunnan Prov., China); Chu et al ., 1990: 207–208 (Judian, Lijiang; Duomei, Heqing; Yanjin, Yunnan Prov., China); Chu & Mo, 1999: 169 (Jinsha‐jiang); Peng et al ., 2004: 979–987 (Yanjin, Yunnan Prov. ); Thomson & Page, 2006: 78 (Yangtze River basin, China); Zhang & Zhao, 2016: 176, (in part: Jinsha‐jiang and Bailong‐jiang); Zhang et al ., 2019: 484–486 (Kanding in Sichuan Prov., China; Judian, Lijiang and Niulan‐jiang, Huize, Yunnan Prov., China); Li et al ., 2020: 835 (Jinshan‐jiang and Yalong‐jiang).…”

“…Pareuchiloglanis chui Li et al ., 2020: 835–839, figs. 2b, 3d, 4c (type locality: Wuhou Village, Judian Town, Yulong Co.; Shangjiang Town, Xianggelila City; Benzilan Town, Deqin Co., Yunnan Prov., China).…”

The complete mitogenome of Pareuchiloglanis sichuanensis (Siluriformes: Sisoridae)

“…Pareuchiloglanis sichuanensis Ding, Fu, Ye 1991 is categorized into family Sisoridae, order Siluriformes (Ding et al 1991), distributed in the Dadu River, Qingyi River, and Min River, which all belong to the upper reaches of the Yangtze River drainage (Li et al 2020). It usually lives in the bottom of streams and rivers, where the bottom material is sand and stone (Ding et al 1991).…”

“…The fish populations have declined dramatically in recent years as a result of over fishing, dam construction, water pollution, and other human interferences. However, the studies on this species were only limited in some reports about the taxonomic characters and distribution (Ding et al 1991;Li et al 2020). Therefore, some basic biology data including genetic information should be further studied, which may be beneficial to research on systematics, resource protection and development of P. sichuanensis.…”