A preliminary report on freshwater mollusca of Arunachal Pradesh, Northeast India and first report of an exotic invasive species Physella acuta (Draparnaud, 1805) from the state
DOI:
https://doi.org/10.26515/rzsi/v123/i1/2023/162219Keywords:
Arunachal Pradesh, Bivalvia, Conservation Status, Freshwater Mollusca, GastropodaAbstract
A total of 32 freshwater molluscs has been reported from the state of Arunachal Pradesh which belongs to 2 classes, 7 orders, 12 families and 20 genera including two invasive freshwater species, Physella acuta and our own native species Melanoides tuberculata which is widely invasive in the tropics outside its native. Unionidae under class Bivalvia has the maximum number species followed by Paludomidae under the class Gastropoda. Thirty species of the freshwater molluscs reported from the state belongs to least concerned category of IUCN Red List of Threatened Species. Version 2021-1 (n.d.). Conservation status of two indegenious species under family Paludomidae, viz., Paludomus aborensis Godwin-Austen, 1918 and Paludomus rotungensis Preston, 1915 were not evaluated. Physella acuta which is an exotic species is reported for the first time from the state.