A new cave-dwelling loach, Triplophysa macrocephala (Teleostei: Cypriniformes: Balitoridae), from Guangxi, China |
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Authors: | Jian Yang Tie-Jun Wu and Jun-Xing Yang |
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Institution: | (1) School of Chemistry and Life Sciences, Guangxi Teachers Education University, Nanning, 530001, People’s Republic of China;(2) Guangxi Institute of Fisheries, Nanning, 530021, People’s Republic of China;(3) State key laboratory of genetic resources and evolution, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, 650223, People’s Republic of China; |
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Abstract: | A new cave-dwelling species, Triplophysa macrocephala sp. nov. is described based on specimens collected from a karst cave in Renguang village, Lihu Town, Nandan County, Guangxi
Zhuang Autonomous Region, China. The new species can be distinguished from its congeners by possessing the following combination
of characters: pectoral fin not reaching beyond pelvic-fin origin; caudal fin forked; body smooth or scaleless; dorsal-fin
origin anterior to pelvic-fin origin, edge of dorsal fin truncate; dorsal fin with eight branched rays; anal fin with five
branched rays; eye small and vestigial; lower jaw arched with a median notch; air-bladder wrapped in bony capsule, lateral
enlarged, posterior chamber of air-bladder degenerated. |
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