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

[4] Microcotyle neozealanica was redescribed by Dillon et al., in 1985 from a single specimen from the gills of Chloropthalmus nigripinnis.

[6] Microcotyle neozealanica has the general morphology of all species of Microcotyle, with an elongate fusiform body provided with a thin and smooth tegument, and comprising an anterior body proper which contains most organs and a posterior part called the haptor.

The reproductive organs include an anterior genital atrium armed with numerous spines, a dorsal vagina, a single tubular and folded ovary, and a number of follicular testes which are postovarian, and 11–20 in number.

[1] The type-host of Microcotyle neozealanica is the red gurnard perch Helicolenus percoides (Sebastidae).