Liu S W, Pan X F, Yang J X, Chen X Y
State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, China.
Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, 05282, Myanmar.
J Fish Biol. 2017 Mar;90(3):834-846. doi: 10.1111/jfb.13201. Epub 2017 Feb 2.
A new cave-dwelling loach of the genus Triplophysa, T. xichouensis, is described from an outlet of a subterranean river in Xisa Town, Xichou County, Yunnan Province, China. It can be distinguished from its congeners by the following characters: dorsal-fin rays iii, 8; anal-fin rays ii, 6; pectoral-fin rays i, 9 or 10; pelvic-fin rays i, 5 or 6; branched caudal-fin rays 16(8+8); eyes highly degenerated to a very tiny black dot; dorsal-fin origin closer to snout tip than to caudal-fin base and anterior to vertical line of pelvic-fin origin; pectoral fin length about two-thirds the distance between pectoral-fin origin to pelvic-fin origin; caudal peduncle slender, its length about three times its depth; caudal fin emarginate; body smooth and scaleless; lateral line complete and straight; anterior chamber of air bladder wrapped in dumbbell-shaped bony capsule and the posterior one well developed, long, oval; intestine short, bending in zigzag shape behind stomach. A key for the cave-dwelling species of Triplophysa is provided. urn:lsid:zoobank.org:pub:9162FFB1-7911-47C3-AE50-6A00E9590327.
描述了一种新的高原鳅属洞穴居泥鳅，即西畴高原鳅，它采自中国云南省西畴县西洒镇一条地下河的出水口。它可通过以下特征与同属其他物种相区分：背鳍条iii，8；臀鳍条ii，6；胸鳍条i，9或10；腹鳍条i，5或6；分枝尾鳍条16（8+8）；眼睛高度退化至非常小的黑点；背鳍起点距吻端比距尾鳍基部更近，且在腹鳍起点垂直线之前；胸鳍长度约为胸鳍起点至腹鳍起点距离的三分之二；尾柄细长，其长度约为深度的三倍；尾鳍微凹；身体光滑无鳞；侧线完整且直；鳔前室包裹在哑铃形骨囊中，后室发达，长椭圆形；肠短，在胃后方呈锯齿状弯曲。提供了高原鳅属洞穴居物种的检索表。urn:lsid:zoobank.org:pub:9162FFB1-7911-47C3-AE50-6A00E9590327。
