melanogaster

From the genus name.

melanogaster (plural melanogasters)

1. Any of several fungi of the genus Melanogaster.

From Ancient Greek μέλας (mélas, “black”) + γᾰστήρ (gastḗr, “belly”).

• (Classical) IPA^(key): /me.la.noˈɡas.ter/, [mɛɫ̪änɔˈɡäs̠t̪ɛr]
• (modern Italianate Ecclesiastical) IPA^(key): /me.la.noˈɡas.ter/, [melänoˈɡäst̪er]

melanogaster (feminine melanogastra, neuter melanogastrum); first/second-declension adjective (nominative masculine singular in -er)

1. (New Latin) having a black belly

• Used exclusively as a taxonomic epithet and thus normally in the nominative singular; other inflections may be theoretical or rarely found.

First/second-declension adjective (nominative masculine singular in -er).

• nigriventris

• Acheilognathus melanogaster
• Anhinga melanogaster
• Boa constrictor melanogaster
• Drosophila melanogaster
• Poecilia melanogaster
• Turnix melanogaster