Bulgallian sludge rats (or simply Bulgallian rats) were an alien animal.

In 2364, Wesley Crusher, who was undergoing the Starfleet Academy entrance exam, considered bringing up the images of Bulgallian rats in the holodeck in order to prepare for the upcoming psych test. Later, after a Zaldan collided with Wesley in a corridor, he referred to Wesley as a "Bulgallian sludge rat." (TNG: "Coming of Age")

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.