Microcotyle emmelichthyops is a species of monogenean, parasitic on the gills of a marine fish in Hawaii.

Microcotyle emmelichthyops has the general morphology of all species of Microcotyle, with a flat body, 2.3-11 mm in length, comprising an anterior part which contains most organs and a posterior part called the haptor.

The haptor is symmetrical and bears 62-115 clamps, arranged as two rows, one on each side.

The digestive organs include an anterior, terminal mouth, a muscular pharynx, and a posterior intestine with two lateral blind-ending branches.

[1] Yamaguti[1] considered that the species "differed from the most closely related Microcotyle cepolae Yamaguti, 1937 in the genital atrium consisting of a larger anterior and a smaller posterior chamber and in the number of testes (20-46 vs 15-20)".