Madagascar Leaf-nosed Snake 
Malagasy Cat-eyed Snake 
Malayan Banded Wolf Snake 
Malayan Bridal Snake 
Malayan green whipsnake 
Manchurian Black Water Snake 
Maren's Bronzeback 
Maritime Gartersnake 
Mexican Black Kingsnake 
Mexican Garter Snake 
Mexican parrot snake 
Middle American Indigo Snake 
Midland Watersnake 
Mole snake 
Mussurana (species) 
Neotropical Snail-Eater 
Neotropical Snail-Eater 
Neotropical Whipsnake 
Nganson bronzeback 
Nilgiri keelback 
Northern Black Racer 
Northern Cat-eyed Snake 
Northern Ringneck Snake 
Northern Water Snake