Land snails of Guwahati, Assam, India

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Girindra Kalita


Assam is located in the Indo-Burma global biodiversity hotspot, and contains many animals and plants that have not been investigated scientifically. Increasing urbanization and destruction of forest cover have created threats to the survival of many species, hence scientific investigation is important to support conservation efforts. I undertook this study to evaluate the status of land snails in Guwahati, the capital city of Assam, a fast-growing city 216 km2 in area where shrinkage of natural forest cover has become a matter of great concern. A total of 12 species were recorded: Cyclophorus pearsoni (Benson, 1851), C. zebrinus (Benson, 1836), Pterocyclus parvus (Pearson, 1833), Endothyrella affinis (Gude, 1897), Cryptaustenia silcharensis (Godwin-Austen, 1907), Macrochlamys atricolor (Godwin-Austen, 1875), M. hengdanensis Godwin-Austen, 1899, Sitala rimicola (Benson, 1859), Bradybaena cestus (Benson, 1836), Lissachatina fulica (Bowdich, 1822), Allopeas gracile (Hutton, 1834), and Rishetia hastula (Benson, 1860). I have provided a detailed discussion of our findings.

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Páll-Gergely, B., P.B. Budha, F. Naggs, T. Backeljau & T. Asami (2015). Review of the genus Endothyrella Zilch, 1960 with description of five new species (Gastropoda, Pulmonata, Plectopylidae). ZooKeys (529): 1–70:

Bhattacharyya, P.C. (1977). Ecology of Achatina (Lissachatina) fulica fulica (Bowdich) Distribution in Guwahati. unpublished Ph.D. Thesis. Gauhati University, 258 pp.

Blanford, W.T. & H.H. Godwin-Austen (1908). The Fauna of British India, including Ceylon and Burma. Mollusca. Testacellidae and Zonitidae. Taylor and Francis, London, 299 pp.

Budha, P.B., F. Naggs & T. Backeljau (2017). Conchological differentiation and genital anatomy of Nepalese Glessulinae (Gastropoda, Stylommatophora, Subulinidae), with descriptions of six new species. ZooKeys (675): 129–156.

Clements, R., P.K. Ng, X.X. Lu, S. Ambu, M. Schilthuizen & C.J. Bradshaw (2008). Using bio-geographical patterns of endemic land snails to improve conservation planning for limestone karsts. Journal of Biological Conservation 141(11): 2751–2764.

Gude, G.K. (1914). The fauna of British India including Ceylon and Burma (Mollusca-II). Today & Tomorrows Printers & Publishers, New Delhi, 520 pp.

Gude G.K. (1921). The fauna of British India including Ceylon and Burma (Mollusca-III). Today & Tomorrows Printers & Publishers, New Delhi, 386 pp.

Kalita, G., S.K. Sarmah, A. Bairagee, D. Kakati, P. Baruah, S. Narzary & Rajbanshi (2011). Imperiled wetlands of Guwahati and their conservation. Journal of Environment and Ecology 29(1): 217–223.

Lydeard, C., R.H. Cowie, W.F. Ponder, A.E. Bogan, P. Bouchet, S.A. Clark, K.S. Cummings, T.J. Frest, O. Gargominy, D.G. Herbert, R. Hershler, K.E. Perez, B. Roth, M. Seddon, E.E. Strong & F.G. Thompson (2004). The Global Decline of Nonmarine Mollusks. BioScience 54(4): 321–330.

Magare, S.R. (2015). Species inventory of land mollusces from Satpuda mountains, India. Indian Journal of Life Science, special issue A3: 77–81.

Mitra, S.C., A. Dey & Ramakrishna (2005). Pictorial Handbook Indian Land Snails. Zoological Survey of India, Kolkata, 344 pp.

Ramakrishna, S.C. Mitra & A. Dey (2010). Annotated Checklist of Indian Land Molluscs. Zoological Survey of India, Kolkata, 359 pp.

Sajan, S.K., S. Das, B. Tripathy & T. Biswas (2021). Malacofaunal inventory in Chintamoni Kar Bird Sanctuary, West Bengal, India. Journal of Threatened Taxa 13(2): 17807–17826.

Sen, S., G. Ravikanth & N.A. Aravind (2012). Land snails (Mollusca: Gastropoda) of India: status, threats and conservation strategies. Journal of Threatened Taxa 4(11): 3029–3037.

Shannon, C.E. & W. Weaver (1949). The Mathematical Theory of Communication. University of Illinois Press, 117 pp.

Sturm, C.F., T.A. Pearce & A. Valdés (eds.) (2006). The Mollusks: A Guide to Their Study, Collection, and Preservation. American Malacological Society. Published by Universal publishers, Boka Raton, Florida, USA, 445 pp.

Thakur, A. & D.C. Goswami (1993). Urban sprawl and land suitability analysis: A case study of Guwahati City and its environs. Proceedings of National Symposium on Remote Sensing Applications for Resource Management with special emphasis on North Eastern Region, Guwahati, 194–201 pp.