Deathspitter
From Lexicanum
A Deathspitter is a Tyranid Bio-weapon.
In 4th Edition and 3rd Edition it is a highly complicated, multi-organism symbiote weapons which launch corrosive maggot creatures through muscle spasms. Wherever the maggots strike volatile fluids splatter across a wide area and sear any flesh and melt any armour it comes into contact with.1-p30
In 2nd Edition the Deathspitter was commonly carried by Tyranid Warriors and is formed from three different creatures. Inside the weapon is a warm, wet brood-chamber where the maggot creatures grow which form the ammunition. They have a tough outer shell and are filled with highly corrosive and volatile fluids. Next to the brood chamber is the arming orifice where resides a spider-jawed creature which strips the maggot's carapace off and drops it into the firing colon. The colon reacts to the corrosive flesh of the maggot by producing a powerful spasm to launch the creature out of the weapon. The maggot then impacts with something, splattering over a wide area and killing with a combination of velocity, poison and corrosive slime. The slime can eat through flesh and armour with ease.2-p54
