Where does “Plotus melanogaster” come from?

Plotus melanogaster (Translingual) comes from Latin melanogaster, from Ancient Greek Μέλας, from Ancient Greek black.

Ancestry of “Plotus melanogaster”, step by step

Step	Language	Word	Meaning
1	Latin	melanogaster	having a black belly
2	Ancient Greek	Μέλας	—
3	Ancient Greek	black	—