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Issue: Vol. 5463 No. 2: 5 Jun. 2024
Type: Article
Published: 2024-06-05
DOI: 10.11646/zootaxa.5463.2.4
Page range: 232-246
Abstract views: 36
PDF downloaded: 1

Physoschistura longibulla, a new loach (Cypriniformes: Nemacheilidae) from Irrawaddy basin in central Myanmar

State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming; Yunnan; 650201; China; Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw; 05282; Myanmar; University of Chinese Academy of Sciences; Beijing; 100049; China; Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation; menglun; Yunnan; 666303; China
State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming; Yunnan; 650201; China; Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw; 05282; Myanmar; Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation; menglun; Yunnan; 666303; China
Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw; 05282; Myanmar; Forest Research Institute; Yezin; Nay Pyi Taw; 05282; Myanmar
State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming; Yunnan; 650201; China; Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw; 05282; Myanmar; University of Chinese Academy of Sciences; Beijing; 100049; China; Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation; menglun; Yunnan; 666303; China
State Key Laboratory of Genetic Resources and Evolution & Yunnan Key Laboratory of Biodiversity and Ecological Security of Gaoligong Mountain; Kunming Institute of Zoology; Chinese Academy of Sciences; Kunming; Yunnan; 650201; China; Southeast Asia Biodiversity Research Institute; Chinese Academy of Sciences; Yezin; Nay Pyi Taw; 05282; Myanmar; Yunnan International Joint Laboratory of Southeast Asia Biodiversity Conservation; menglun; Yunnan; 666303; China
Pisces Taxonomy Air bladder capsule Mustura Mandalay

Abstract

Physoschistura longibulla, a new species and the first species of the revised genus Physoschistura from Pyin Oo Lwin of Irrawaddy basin, can be distinguished from other congeners by the combination of following characters: posterior chamber of air bladder well developed, connecting anterior with a long and thin tube, long and oval; dorsal fin with 81/2 branched rays, its origin slightly anterior to pelvic-fin base vertically; lateral line complete and straight, with 93–102 pores; pectoral fin with 8–9 branched rays, reaching 1/2 to 2/3 of distance to pelvic-fin base; suborbital flap absent in male; axillary pelvic lobe present; caudal fin with 9 + 8 branched rays.

 

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