Thread Snake (Leptotyphlops carlae): This snake species is native to the Caribbean and is considered the smallest snake in the world, with an average length of just 10 cm (4 inches).
Western Blind Snake (Leptotyphlops humilis): This non-venomous snake is found in the United States and Mexico and is one of the smallest snakes in North America, with an average length of 13 cm (5 inches).
Brahminy Blind Snake (Ramphotyphlops braminus): Also known as the Flowerpot Snake, this species is native to Southeast Asia and is one of the smallest snakes in the world, with an average length of 15 cm (6 inches).
Ringed Snakelet (Diadophis punctatus): This small snake is found in North America and is one of the smallest species in the colubrid family, with an average length of 20 cm (8 inches).
Sharp-tailed Snake (Contia tenuis): This small, non-venomous snake is found in North America and is known for its sharp-tipped tail, with an average length of 20 cm (8 inches).
Spotted Snake-eel (Ophichthus ophis): This snake-like eel is found in the Indo-Pacific and is one of the smallest eels in the world, with an average length of 25 cm (10 inches).
Green Keelback (Macropisthodon rudis): This snake species is found in Southeast Asia and is one of the smallest species in the colubrid family, with an average length of 25 cm (10 inches).
Crowned Snake (Tantilla coronata): This small snake is found in North America and is known for its distinctive crown-like pattern on its head, with an average length of 25 cm (10 inches).
Rough Earth Snake (Virginia striatula): This small, non-venomous snake is found in North America and is known for its rough scales, with an average length of 28 cm (11 inches).
Common Worm Snake (Carphophis amoenus): This small, non-venomous snake is found in North America and is known for its burrowing behavior, with an average length of 30 cm (12 inches).