Seasonal Variations of hard parts of Hamatopeduncularia thalassini Bychowsky and Nagibina, 1969 (Monogenea: Dactylogyridae, Ancyrocephalinae) on the gills of Mystus seenghala in river Ganges near Chandpur (U. P.) India Journal title: Voyager Authors: Pragati Rastogi, Dr. Jyoti Singh Subject(s):
