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

[1] Microcotyle bothi has the general morphology of all species of Microcotyle, with a flat body, 3.8-7.9 mm in length, comprising an anterior part which contains most organs and a posterior part called the haptor.

The haptor is symmetrical and bears 45-65 clamps, arranged as two rows, one on each side.

The clamps of the haptor attach the animal to the gill of the fish.

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