Haruspex
The Haruspex is a species of Tyranid which specializes in assault and eating things. Lots of things. To aid it in this task it has a mouth that wouldn't be too out of place in your average tentacle hentai. The tentacles work just as good for tearing apart enemy combatants as they do for eating named enemy combatants. It received an official model in a shared kit with the Exocrine in the 6th edition release of Codex: Tyranids.