M*-Opsin

A hybrid of the typical M-Opsin and L-Opsin that has a Peak Wavelength between 530nm and 560nm. There is no fundamental difference between M*- or L*-Opsins, and are only called such depending on whether the complementary gene on the same Chromosome is a typical M- or L-Opsin.

When a male has a M*-Opsin (and L-Opsin), he has Deuteranomaly.