P. ishaquei n.sp. differs from its close allies in body shape and size; v-shaped ovary; lung shaped testes; distribution of vitellaria composed of two unequal bands commencing from level of intestinal fork, running in lateral field of body and egg larger in size. On the basis of these diagnostic differences, a new species P. ishaquei is proposed. This genus is being reported for the first time from Pakistan.

Trematodes of genus Psilochasmus were identified as P. oxyurus. Previously this genus was reported by Bhutta and Khan, 1975 from same bird of Pakistan. However, this is the second report of the genus Psilochasmus from Pakistan.