Dr. L Kosygin Singh



Dr. L Kosygin Singh



Highest Academic degree, year

Ph.D. in Life Sciences (Zoology); 1999






Fish Division, Zoological Survey of India, Ministry of Environment, Forest & Climate Change, Govt. of India,

27 J.L. Nehru Road, Kolkata-700016.


Email Address;


Phone Number



Area of Expertise

Taxonomy, Biogeography & Ecology: Freshwater Fishes


Experience after Ph. D.

24 years


Significant Achievements






- Discovered 41 new fish species from India and Myanmar.

- Assessed global IUCN status of 48 species of fishes.

- Documented systematic checklist of fishes of India.

- Completed more than 10 research programme/projects.

- Contributed to the taxonomy, biogeography and ecology of   
  freshwater fishes of India.




Supervised 02 PhD students


Research Focus








- Survey and exploration of unexplored areas of India.

- Taxonomy and classification of fishes of India.

-  Species diversity and distribution patterns of Hill stream

-  Status and biogeography of Sisorid catfishes of Indian

- Conservation of endemic and threatened fishes of India.












Books (Five important publications)

  • Kosygin, L. (ed.) 2009. Wetlands of North East India: Ecology, Aquatic Bioresources & Conservation. Akansha Publishing House, New Delhi, 343 pp. (ISBN: 978-81-8370-187-7).
  • Kosygin, L. (ed.) 2011. Biodiversity, Ecology and Conservation of Rivers & Streams of North East India. Akansha Publishing House, New Delhi, 373 pp. (ISBN: 978-81-8370-276-8).
  • Kosygin, L., Rao, D.V. and Rath, S. 2014. Fauna of Cauvery Estuarine System, Tamil Nadu with special reference to Ichthyofauna and Crustaceans.  Estuarine Ecosystem Series, 10: 1-104 + 19 Plates (Published by the Director, Zoological Survey of India, Kolkata) (ISBN: 978-81-8171-385-8). 
  • Kosygin, L., Das, S., Gurumayum, S.D. and Rath. 2019. Fauna of Narmada and Tapi Estuaries, Gujarat. Estuarine Ecosystem Series, 11: 1-91 + 16 Plates (Published by the Director, Zoological Survey of India, Kolkata) (ISBN: 978-81-8171-536-4).
  • Chandra, K., Kosygin, L., Raghunathan, C. and Gupta, D. 2021. Faunal Diversity of Biogeographic Zone of India: North-East: 1-720. (Published by the Director, Zool. Surv. India, Kolkata).


Journal article (Five important publications)

- 34 research papers in SCI journals


  • Kosygin, L., Shangningam, B.D. & Gopi, K.C. 2018. Olyra parviocula, a new species of bagrid catfish (Actinopterygii: Siluriformes), from northeastern India. Environmental Biology of Fishes, 101(4): 589-593 (DOI 10.1007/s10641-018-0721-7).  
  • Kosygin, L., Das, U., Singh, P. and Roy Chowdhury, B. 2019. Glyptothorax gopii, a new species of catfish (Teleostei: Sisoridae) from Mizoram, north-eastern India. Zootaxa, 4652 (3): 568–578. 
  • Kosygin, L., Singh, P. and Gurumayum, S.D. 2020. Glyptothorax giudikyensis, a new species of catfish (Teleostei: Sisoridae) from Manipur, India. Ichthyological Exploration of Freshwaters, DOI:
  • Kosygin, L., Singh, P. & Rath, S. 2021. A new species of Glyptothorax (Teleostei: Sisoridae) from the Brahmaputra River basin, Arunachal Pradesh, India. Zootaxa, 5023 (2): 239–250. 
  • Singh, P., Kosygin, L., Gurumayum, S. D. and Rath, S.  2022. Exostoma dhritiae, a new sisorid catfish (Teleostei: Sisoridae) from the Brahmaputra River drainage, Arunachal Pradesh, India. Zootaxa, 5219 (2): 165-174.




 ResearchGate profile



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