Abstract
In the present communication a new glyptosternine catfish Creteuchiloglanis nuthemuensis, is described from the Duphlokho River in West Kameng district, Arunachal Pradesh, India, which is a headwater of the Kameng River in the Brahmaputra basin. The new species is eminent from all closely related species of the genus by a distinct combination of the subsequent characteristics: presence of long pectoral fin extending over the pelvic fin origin and its reaching posterior end of dorsal fin base, body depth at anus 12–15.8% SL, predorsal length 34.5–35.9% SL, pelvic fin length 16–19.8% SL, adipose fin base length 28.3–33.3% SL, caudal peduncle depth 6.6–7.6% SL, absence of pinnate-like rays on the first branching ray’s anterior margin and second simple ray of anal fin, head depth 9.9–11.3% SL, and eye diameter 5.3–7.5% HL. This is the sixth Creteuchiloglanis species described from the Brahmaputra River basin.
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All data generated or analysed during this study are included in this published article.
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ACKNOWLEDGMENTS
We are grateful to Director, ICAR-National Bureau of Fish Genetic Resources for valuable financial support, laboratory facilities and encouragement and very grateful to Dr. Achom Darshan and Prof. Debangshu Narayana Das, Rajiv Gandhi University, Itanagar for giving access to the types under their care. Authors very thankful to Mr. Pema Khandu Thongdok and his family, Mr. M.C. Adak, Mr. Ledo Thungon and Mr. Toni Apang, for their immense support in the field exploration.
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This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.
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All authors contributed to the study conception, characterization and implementation. Material preparation, data collection and analysis were performed by Diamond Rajakumar Tenali, Uttam Kumar Sarkar, Rejani Chandran and Rajeev Kumar Singh. The first draft of the manuscript was written by Diamond Rajakumar Tenali and Uttam Kumar Sarkar and all authors contributed to the manuscript finalization. All authors read and approved the final version of the manuscript.
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Before preserving in 70% ethanol for storage prior permissions was approved by the ethical committee of National Bureau of Fish Genetics and Resources of India (NBFGR), Lucknow, Uttar Pradesh, India for all fish explorations in India to collect and preserve fish germ plasm for fish conservations (permit number: G/IAEC/2021/3). Live specimens were not exposed to any chemicals.
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Uttam Kumar Sarkar, Tenali, D.R., Chandran, R. et al. Discovery of a New Glyptosternine Catfish Creteuchiloglanis nuthemuensis (Siluriformes: Sisoridae) from the Duphlokho River, Arunachal Pradesh, India. Biol Bull Rev 14, 206–212 (2024). https://doi.org/10.1134/S2079086424020099
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DOI: https://doi.org/10.1134/S2079086424020099