Local injury is often minimal and easy to miss as venom is delivered via chewing rather than injection
Venom effects may develop hours after a bite
Systemic signs may be delayed up to 13h after bite
Neurotoxicities in particular for coral snakes
Local numbness rather than pain/swelling
Cranial nerve palsies
Altered mental status
Weakness
Respiratory failure due to paralysis
Hypovolemic shock
Venom-induced consumption coagulopathy (DIC-like syndrome) (uncommon, but reported)
Local numbness rather than pain/swelling
Cranial nerve palsies
Altered mental status
Weakness
Respiratory failure due to paralysis
Elapidae 
Hymenoptera stings 
Hookworm
Mammalian bites
Bed bugs
Closed fist infection 
Clitocybe
Dog bite