Studies on the free-living protozoan fauna of estuaries in the coastal zone of Tamil Nadu, India Author Bindu, L. text Records of the Zoological Survey of India 2021 121 1 61 75 journal article 10.26515/rzsi/v121/i1/2021/141506 2581-8686 13186453 44. Padaungiella wailesi (Deflandre, 1936) Kosakyan et al ., 2016 Material examined : Mi-97, 2 ex. , Marakkanam estuary, 5.vii.2012 . Diagnosis : Test flask-shaped; aperture slightly arched and bordered by thickened organic collar; in lateral view aperture moderately notched and test vase-shaped but slightly compressed; test covered with platelets of mixed sizes. Distribution in India : Himachal Pradesh , Sikkim , Tamil Nadu .