Melanogaster

Melanogaster ("black-bellied") may refer to the following organisms:
 * Genera:
 * Melanogaster (fungus), a genus of false truffles
 * Melanogaster (fly), a genus of hoverflies
 * Species:
 * Drosophila melanogaster, a species of fruit fly, widespread and also important in research
 * Acheilognathus melanogaster, a species of brackish-freshwater ray-finned fish in Japan
 * Anhinga melanogaster, the Oriental darter (snakebird), a water bird of tropical South Asia and Southeast Asia
 * Turnix melanogaster, the black-breasted buttonquail (a rare bird in Australia)