1. Having an aftershaft (a small feather at the base of some feathers)

See also: feathered

• genus Monocanthus
• genus Monochamus
• genus Monodon
• genus Monomorium
• genus Mononychus
• genus Monotropa
• genus Monstera
• genus Montezuma
• genus Montia
• genus Morchella
• genus Morone
• genus Morus
• genus Moschus
• genus Motacilla
• genus Mucor
• genus Mucuna
• genus Mugil
• genus Muhlenbergia
• genus Mulloidichthys
• genus Mullus
• genus Muntiacus
• genus Muntingia
• genus Mus
• genus Musa
• genus Musca