Mercuric iodide also exhibits dimorphism.
In some species of Dinophilus there is pronounced sexual dimorphism (the male being small and without gut) as in the Rotifera.
His investigation (also in 1826) of the two crystalline modifications of sulphur threw much light on the fact that the two minerals calc-spar and aragonite have the same composition but different crystalline forms, a property which Mitscherlich called dimorphism.
What we are looking at here, in effect, is sexual dimorphism rather than gender.
The most stable size dimorphism is in the size of the canines, which is pronounced in all studied samples.