Disuse [31]

Drosophila ampelophila [10], [12], [13], [48]-[50], [60], [75], [84], [85], [93], [100], [103], [119], [155], [162], [169]

Drosophila repleta [76]

Duplication of legs [109]

Dwarf [114]

East [170], [172]

Ebony [50], [55], [56], [115]

Egg [91], [94]

Elephant [191]

Elephants' skulls [188]