Mourning Gecko 
Mugger crocodile 
Mulga Snake 
Müller's Blind Snake 
Murray River turtle 
Mussurana (species) 
Mwanza flat-headed rock agama 
Namaqua chameleon 
Namaqua Sand Lizard 
Namib rock agama 
Namib sand gecko 
Namib Sand Snake 
Neotropical green anole 
Neotropical Rattlesnake 
Neotropical Snail-Eater 
Neotropical Snail-Eater 
Neotropical Whipsnake 
New Guinea snapping turtle 
Nganson bronzeback 
Nile crocodile 
Nile monitor 
Nilgiri keelback 
Northern alligator lizard 
Northern Australian Snakeneck Turtle