Seasonal variation in the occurrence of Pallisentis ophiocephali and Acanthosentis betwai (Acanthocephala) in relation to their fish hosts.

Male and female Channa striatus (BL.) and Labeo rohita (HAM.) were examined monthly for Pallisentis ophiocephali (THAPAR, 1930) and Acanthosentis betwai (TRIPATHI, 1959) infections for a period of two years.