[1] The correlations between 15 morphometric characters and body length was investigated in Microcotyle omani, as well as and their significance for species differentiation.

The reproductive organs include an anterior large inverted heart-shaped genital atrium, armed with numerous spines, a medio-dorsal vagina, a single ovary in form of question-mark and 34–55 testes, irregular in shape and size and generally occurring in 2–4 interleaved rows, intercaecal, in the posterior half of the body proper.

The eggs are fusiform, with 2 long filaments bearing strongly curled tips.

It differs from M. arripis, M. helotes and M. caudata by the number of testes, from M. arripis, M. helotes by the genital atrium, and length/width ratio of the genital atrium and length of the eggs, and from M. helotes in greater width of the clamps, from M. caudata and M. sebastis by the number of clamps and the ratio between length and width of the genital atrium.

[1] The type-host and only recorded host is the santer seabream Cheimerius nufar (Sparidae).