Two new species of the monogenoid genus Cornudiscoides kulkarni,1969 from naked catfish Sperata aor (Hamilton,1822): Specialist or generalist?

The genus cornudiscoides was established by kulkarni in 1969 with type species c. heterotylus along with c. microtylus and c. megalorchis from m. tengara. so far,only one species c. mystusi has been reported from s. aor (mystus aor synonymise under sperata aor). two new species of the genus cornudiscoides viz. c. longicirrus n.sp.,and c. aori n.sp.,have been described herein from sperata aor were collected from river gomti. they are characterized by their unique copulatory complex and vaginal armature. a short note on host specificity of the genus cornudiscoides is also being discussed herein along with key to species (indian). copyright 2016 zoological society of pakistan.