The Nauls-Thing was a Thing which assumed the form of Nauls, a cook stationed at U.S. Outpost 31. While planned for inclusion in the 1982 film The Thing, the creature was dropped due to financial and time constraints. It can still be seen in production artwork.
After being initially attacked by the Blair-Thing, Nauls was supposed to burst through the floor right before the Blair-Thing appears. The creature physically resembles an emaciated, corpse-like Nauls, with numerous worm-like tentacles writhing from his body (much like the Kennel-Thing). Caught in the process of being assimilated, he was to call out to MacReady for help, before being consumed by a giant worm-like tentacle that moved upwards through his body - grotesquely bursting his rib-cage and jaws. Since Nauls' fate was never shown on-screen, this is not considered the official reasoning behind Nauls' fate.