Abstract
A new thorny headed worm, Pallisentis munifi n.sp. is described here from the small intestine of freshwater fish, mrigal carp (Cirrhinus mrigala Hamilton, 1822). The new species is characterized by possessing curved medium size body, proboscis small, cylindrical to globular, proboscis having 4 circle of hooks each having six hooks, proboscis receptacle cylindrical to saccate with single layered muscular wall reaching to second row of collar spines. Collar spines in 14-15 rows. Body spines having 54–56 rows of spines. Lemnisci long, unequal; Testes cylindrical the anterior smaller as compared to posterior; cement gland long, cylindrical containing a number of nuclei; bursa well developed and eggs numerous, oval to elongated.
