2x Scything Talons

Tyranid creatures with scything talons count as having two close combat weapons and so gain +1 Attack. Creatures with two sets of scything talons gain +2 Attacks in close combat instead of +1. No more than +2 Attacks can be gained in this way an the number of attacks from ranged weapon-symbiotes is not increased. Note that this is  the only way that Tyranids gain extra attacks in close combat for multiple weapons.