The method of distinguishing male and female is as follows:

1. Look at the position of the excretory hole of the Eichardt. The excretory orifice of the female terrapin is close to the plastron.

2. Look at the shape of the excretory hole of the Ehrlich terrapin. The hole shape of the male Ehrlichoid terrapin is elongated, and the hole shape of the female Ehrlichian terrapin is circular.

3. Looking at the plastron of the Eichthys terrapin, the male Eichthys terrapin has obvious depressions in this part, while the female Eichthys terrapin appears to be relatively Flat, markedly different from the male terrapin.