Cut wing [11], [104]

Dachs legs [112]

Dahlgren [62]

Darwin [15], [24], [28], [32], [35]-[37], [64], [145], [146], [152], [154]-[156]

Dendy [188]

De Vries [18], [147], [156]

Dexter [170]

Dichaete [114]

Difflugia [184]-[187]

Discontinuous variation [13]