Oreoglanis hponkanensis, a new sisorid catfish from north Myanmar (Actinopterygii, Sisoridae)

During a survey of the Mali Hka River drainage in Hponkanrazi Wildlife Sanctuary in December 2015, a new species was collected

Xiao-Yong Chen1,2, Tao Qin1,2, Zhi-Ying Chen1,2
1 Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw 05282,Myanmar
2 State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China

Corresponding author: Xiao-Yong Chen (chenxy@mail.kiz.ac.cn)

PubYear : 2017
Volume : 646
Publication Name : ZooKeys
Page number : 95-108

Abstract:

 During a survey of the Mali Hka River drainage in Hponkanrazi Wildlife Sanctuary in December 2015, a new species was collected and is described herein as Oreoglanis hponkanensis. It is a member of the O.siamensis species group and can be distinguished from its congeners in having a unique combination of the following characters: lower lip with median notch and posterior margin entire, caudal fn emarginate, nasal barbel reaching about half the distance to eye, tip of maxillary barbel rounded, posterior margin of maxillary barbel entire, absence of pale elliptical patches on sides of body below adipose fn, absence of patch on base of frst dorsal fn ray, caudal fn brown with two round, bright orange patches in middle, branched dorsal fn rays 5, branched anal fn rays 2, vertebrae 40, pectoral fn surpassing pelvic fn origin, pelvic fn length 21–26% SL, caudal peduncle length 25–33% SL, caudal peduncle depth 3–5% SL, adipose fn base length 34–39% SL, and dorsal to adipose distance 12–16% SL.

Keywords
Hponkanrazi, Irrawaddy, Myanmar, Siluriformes

http://zoobank.org/E44EC7BC-F452-4CE0-85E1-7D205108278D

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