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Issue: Vol. 4711 No. 2: 16 Dec. 2019
Type: Article
Published: 2019-12-16
DOI: 10.11646/zootaxa.4711.2.6
Page range: 330–348
Abstract views: 82
PDF downloaded: 1

Loaches of Homatula (Teleostei: Nemacheilidae) from the upper Salween River in Yunnan, China with description of three new species

Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, 300 Bailongsi Road, Kunming 650224, Yunnan, China College of Biodiversity Conservation, Southwest Forestry University, 300 Bailongsi Road, Kunming 650224, Yunnan, China, +86 (0)875 63862458
College of Biodiversity Conservation, Southwest Forestry University, 300 Bailongsi Road, Kunming 650224, Yunnan, China, +86 (0)875 63862458
Key Laboratory for Forest Resources Conservation and Utilization in the Southwest Mountains of China, Ministry of Education, Southwest Forestry University, 300 Bailongsi Road, Kunming 650224, Yunnan, China College of Biodiversity Conservation, Southwest Forestry University, 300 Bailongsi Road, Kunming 650224, Yunnan, China, +86 (0)875 63862458
Pisces Morphological comparison taxonomy new species Cypriniformes

Abstract

Seven loaches of Homatula are distributed in a narrow geographical area between the upper Black River (or Song Da in Vietnam, that is a major tributary of the Red River, including the tributaries Lixian-jiang and Tengtiao-jiang in Yunnan, China) and the upper Salween River drainage (including tributaries of the Nu-jiang and Nanding-he, the latter is a major tributary of the Salween River in Yunnan, China). These seven species are distinguished from other Homatula by the combination of having the body densely-scaled, the lateral line complete, and a short adipose crest along the dorsal midline of the caudal peduncle that does not reach the posterior end of anal-fin base or does not extend beyond the middle of the anal-fin base. Based on a comparison with the described species of the densely-scaled group of Homatula, we can confirm that the specimens collected from the Nu-jiang drainage in western Yunnan are different from known species and are described herein as Homatula anteridorsalis sp. nov., Homatula cryptoclathrata sp. nov., and Homatula nigra sp. nov.

 

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