13. Centropyxis constricta Penard, 1890 Material examined: Mi-370, 6 ex., Vellar estuary, 08.i.2013; Mi-392, 6 ex., Vellar estuary, 20.vi.2013; Mi-401, 4 ex., Karaikkal estuary, 19.vi.2013. Diagnosis: Test elliptical,grey in colour, posterior part arched, covered with sand stone particles; stony particles attached with posterior border; aperture eccentric and located near the anterior border of the test; diameter of test 110-140µm. Distribution in India: Sikkim, Andhra Pradesh, Assam, Chandigarh, Himachal Pradesh, Meghalaya, Mizoram, Tamil Nadu, Tripura, Uttarakhand, West Bengal.

Published as part of Bindu, L., 2021, Studies on the free-living protozoan fauna of estuaries in the coastal zone of Tamil Nadu, India, pp. 61-75 in Records of the Zoological Survey of India 121 (1) on page 65, DOI: 10.26515/rzsi/v121/i1/2021/141506, http://zenodo.org/record/13186453