Cerebore
The Cerebore is a large Tyranid organism equipped with sacs to transport smaller creatures into battle, similar to the roles fulfilled by the Haruspex. It is equipped with a hardened exoskeleton on its back for protection and multiple tentacles to fend off attackers.
The Cerebore seem to be more sluggish in both appearance and movement albeit more armoured compared to the walking uterus that is the Haruspex, so their battlefield roles could be that of a heavy duty troop transport carrier that may carry more units than the Haruspex at the expense on not having the ability to birth out Gaunts like flashlights and the speed/maneuverability.