The pet dog of Lieutenant Aquiel Uhnari, found alone on a relay station in 2369 and later revealed to have been replaced by a shape-copying organism.
Maura is a dog kept by Aquiel Uhnari at Relay Station 47. She appears in the episode Aquiel.
When the Enterprise-D reaches the silent station, the away team finds no crew, only the dog and a patch of strange matter on the deck. Geordi La Forge takes charge of the animal while he studies Aquiel's personal logs. When Aquiel turns up alive, she is glad to have Maura back.
The investigation finds that a coalescent organism has been at work, a creature that consumes living things and takes their form. Suspicion falls on Aquiel and on the Klingon Morag. The truth is that the creature had taken over the dog. It drops the disguise in La Forge's quarters and comes at him, and he destroys it with a phaser.