Difflugia gramen Penard, 1902

Bindu, L., 2021, Studies on the free-living protozoan fauna of estuaries in the coastal zone of Tamil Nadu, India, Records of the Zoological Survey of India 121 (1), pp. 61-75 : 67

32. Difflugia gramen Penard, 1902

Material examined: Mi-123, 2 ex., Marakkanam estuary,

05.vii.2012; Mi-138, 4 ex., Vellar estuary, 08.i.2013; Mi- 224, 3 ex., Kaduviyar estuary, 06.xii.2013; Mi-249, 4 ex., Vellar estuary, 20.vii.2014; Mi-269, 4 ex., Arasalar estuary,

13.x.2015.

Diagnosis: Test ovoid, brown in colour, not compressed, composed of mineral particles of various sizes, surface of test more or less rough in appearance; aperture with three lobes having small ridges, often surrounded with a row of small granules; aperture sometimes with collar; diameter of test 61-125 µm.

Distribution in India: Andhra Pradesh, Tamil Nadu (present record), West Bengal.