Microcotyle pseudopercis is a species of monogenean, parasitic on the gills of a marine fish.

[1] Microcotyle pseudopercis has the general morphology of all species of Microcotyle, with a symmetrical body, comprising an anterior part which contains most organs and a posterior part called the haptor.

The haptor is symmetrical, and bears clamps, arranged as two rows, one on each side.

The digestive organs include an anterior, terminal mouth, a pharynx, an oesophagus and a posterior intestine with two lateral branches provided with numerous secondary branches.

The reproductive organs include an anterior genital atrium, armed with numerous very spines, a medio-dorsal vagina, a single ovary and a number of testes which are posterior to the ovary.