Robuta

https://species.wikimedia.org/wiki/Pertusaria_complanata Pertusaria complanata - Wikispecies pertusariacomplanatawikispecies https://www.katharina-puschnig.com/wissenschaft/zophosis-complanata/ Zophosis complanata zophosiscomplanata https://marinebiodiversity.org.bd/species/lutraria-complanata/ Lutraria complanata - Marine Biodiversity Portal of Bangladesh Scientific Name: Lutraria complanata, English Name: Elongate otter clam, Local Name: Lomba chilon (লম্বা ছিলন); Family: Mactridae marine biodiversitylutrariacomplanataportalbangladesh