Mauidrillia intumescens is an extinct species of sea snail, a marine gastropod mollusc in the family Horaiclavidae. Fossils of the species date to the late Miocene, and have been found in strata of the Gippsland Basin of Victoria, Australia.
In the original description, Powell described the species as follows:
The holotype of the species measures in height and in diameter.
The species was first described by A.W.B. Powell in 1944. The holotype was collected from the Jemmys Point Formation in the Gippsland Lakes, Victoria at an unknown date prior to 1937, and is held by the Auckland War Memorial Museum.
This extinct marine species occurs in late Miocene strata of the Gippsland Basin of Victoria, including the Jemmys Point Formation.