A new species of Amolops (Anura: Ranidae) representing the morphological 'Marmoratus species group' from Sessa Orchid Sanctuary, Arunachal Pradesh, Northeast India


  • North Eastern Regional Centre, Zoological Survey of India, Shillong - 793003, Meghalaya
  • North Eastern Regional Centre, Zoological Survey of India, Shillong - 793003, Meghalaya
  • Department of Biotechnology, St. Anthony’s College, Shillong - 793001, Meghalaya
  • Zoological Survey of India, Western Regional Centre, Vidyanagar, Pune - 411044, Maharashtra
  • Zoological Survey of India, Western Regional Centre, Vidyanagar, Pune - 411044, Maharashtra




Amolops, Eaglenest, Eastern Himalayas, New Species, Sessa Orchid Sanctuary, West Kameng


The cascade-dwelling frog genus Amolops is known for its range of distribution concentrated in China, India, Myanmar and Nepal. The first Amolops species described from India was in 1871, and since then, 11 species have been described from the country. Being morphologically cryptic and with a preference for cascade habitats, identification of Amolops species based on morphology alone is difficult. Although 11 species of Amolops have been described from the country, their genetic data is very poorly represented in the Amolops phylogenetic studies. In one of our efforts of explorations and documenting the Amolops diversity, multiple populations were sampled in Arunachal Pradesh, which was subjected to genetic analysis. Our study has led to the generation of a novel genetic datum for the species Amolops gerbillus, and a report of a new species. Due to shallow genetic divergence between A. yarlungzangbo and A. gerbillus and the close geographic proximity of the type localities, Amolops yarlungzangbo is proposed to be a junior synonym of Amolops gerbillus as per ICZN codes warranting the examination of the type specimens. Additionally, single gene-based phylogeny is presented including the genetic data available for the Indian species of Amolops.


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Saikia, B., Sinha, B., Laskar, M. A., Shabnam, A., & Dinesh, K. P. (2022). A new species of <i>Amolops</i> (Anura: Ranidae) representing the morphological <i>’Marmoratus</i> species group’ from Sessa Orchid Sanctuary, Arunachal Pradesh, Northeast India. Records of the Zoological Survey of India, 122(3), 303–322. https://doi.org/10.26515/rzsi/v122/i3/2022/167288





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