American Giant Millipede (Narceus americanus)
Kingdom Animalia, phylum Arthropoda, subphylum Myriapoda, class Diplopoda, subclass Helminthomorpha, order Spirobolida
Reaches a length of 4". When threatened, it secretes a brown liquid capable of causing long-lasting stains on bare skin or clothing. It also secretes a defense of very pungent chemicals that causes severe eye irritation from up to three feet away and which can cause temporary blindness if they get into the eye. Should not be handled, especially not without appropriate protection.
It is the most common millipede species in eastern North America.
The nymph sheds several times on its way to adulthood, each time gaining more segments and legs.