Descriptions of Two New Species of the Cyprinid Genus Hongshuia (Pisces: Cypriniformes) from the Pearl River Basin, Southwest China, with a Re-evaluation of the Taxonomic Status of H. paoli
Zhi-Xuan Zeng
Department of Endocrinology, Branch of National Clinical Research Center for Metabolic Diseases, Hubei Clinical Medical Research Center for Endocrinology and Metabolic Diseases, Tongji Hospital, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
Cheng-Jiang Tan
Management Department of Maolan Nature Reserve in Guizhou, Libo 558400, Guizhou Province, China
Ben-Lin Zhang
Guizhou Jinnong Technology Co., Ltd., Guiyang 550006, Guizhou Province, China
E Zhang
Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, Hubei Province, China
[We follow the code of the International Commission on Zoological Nomenclature, taxonomic papers with new species/genus descriptions will not have early view version.]
Communicated by Felipe Polivanov Ottoni
Two new species of the labeonin cyprinid genus Hongshuia, H. boulobos and H. wangi, are here described from tributaries of the Pearl River Basin, Southwest China. Both share with H. brevibarba the presence of a lower lip with a sector-shaped median lobe (the maximum width positioned at anterior potion of median lobe), distinguishing them from H. microstomata and H. megalophthalmus, which have a roughly rounded median lobe. Hongshuia wangi is distinct from H. brevibarba and H. boulobos in having wider median lobe of lower lip (width 47.8–57.6% of head width vs. 40.5–43.4% in H. brevibarba and 38.5–44.0% in H. boulobos). Hongshuia boulobos further differs from all other congeners in having a lower lip with larger lateral lobes (width more vs. less than one-third of the median lobe width). The study also considers H. paoli as a junior synonym of H. megalophthalmus based on morphological and molecular evidence.
Keywords
Biogeography, Cyprinidae, Morphology, Speciation, Taxonomy
