Scything Talons and Rending Claws

Tyranids equipped with Scything Talons count as having two close combat weapons and so gain +1 Attack. Creatures armed 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 and the number of attacks from ranged weapon-symbiotes is not increased. Note this is the only way that Tyranids gain extra attacks in close combat from multiple weapons.

Tyranids with rending claws gain the Rending ability for close combat attacks.