We are grateful to the University Grants Commission (UGC), New Delhi, for financial assistance through the
Centre with Potential for Excellence in Biodiversity (CPEB) scheme and Department of Zoology, Rajiv Gandhi
University, Doimukh for providing all research facilities. We thank Waikhom Vishwanath (Manipur University) for
his support and permission to access specimens in MUMF; Yumnam Rameshori and Nongmaithem Anganthoibi
(Manipur University) for providing data on Glyptothorax trilineatus and comments. We also thank Lalramliana
(Pachhunga University College, Mizoram), Sven O. Kullander (Swedish Museum of Natural History, Stockholm)
and Rajeev Raghavan (Conservation Research Group, St. Albert’s College, Kochi) for providing related literature;
and to Purba Jyoti Saikia for permitting use of the photograph in Fig. 3. We are also grateful to P.C. Tak for
permission to access museum specimens and hospitality, A. N. Rizvi for providing necessary equipment, and
Parmod Kumar for assistance while accessing the specimens during the visit to the Zoological Survey of India,
Northern Regional Centre (ZSI-NRC), Dehradun. This manuscript benefited from Rohan Pethiyagoda and two
anonymous reviewers who provided critical comments that greatly improved this manuscript.