presynaptic activity. M. corallinus has alpha-neurotoxins with pre-synaptic activity that causes a high and spontaneous release of acetylcholine associated with the postsynaptic block of the electrical transmission between the nerve and the muscle. References External links Corallinus Snakes of South America Reptiles of Brazil Reptiles of Argentina Reptiles of Paraguay Reptiles described in 1820 Taxa named by Blasius Merrem