A new species of an interesting trematode genus Pseudodiplodiscoides (Murty, Zool Anz 185:312-317, 1970), is described from the gut of the snail Bellamya bengalensis Lamarck, 1882, collected from the fresh water bodies near district Barabanki, U.P. After careful examination of several freshly collected specimens, the genus is validated and another species described under the genus Diplodiscus viz., D. minutus (Saksena et al., Indian J Helminthol 4:37-54, 1987) from Indoplanorbis exustus Deshayes has also been transferred to the genus Pseudodiplodiscoides as P. mimutus (1987). The new species is characterised by the shape and size of non operculated eggs, extension of vitellaria and position of genital pore.
Keywords: Amphistome trematode; Bellamya bengalensis; Pseudodiplodiscoides.