Opisthoglyphous snakes: Fixed fangs in the back of the snakes mouth that are angled backward with grooves for delivering venom. Most of these snakes are not harmful to humans, with the exception of the Boomslang.
Proteroglyphous snakes: Fixed fangs in the front of a snake's mouth for delivering highly potent venom. This dentition is unique to elapids, which includes cobras. Some spitting cobras have modified these fangs to allow them to spray venom in attacker's eyes. As shown in this video: Spitting Cobra
Solenoglyphous snakes: Most advanced venom delivery system. Fangs typically folded against the roof of the mouth. When striking, fangs swing into position in order to inject venom. The venom is typically less potent than proteroglyphs, but solenoglyphs are capable of injecting much more venom. This type of dentition is unique to vipers.The most venomous snake in the world is the Inland Taipan. One bite from this snake is enough to kill approximately 100 people or 250,000 mice! This is 50x more potent than a King Cobra.
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