Sharingan Spying Creature

Shin Uchiha has several of these creatures working in his service. They have an askew mouth, a nose, four small limbs, and what appears to be a tail. Their single eye features a fully matured Sharingan.

Abilities
The creatures are very stealthy, able to spy at the gate of Konohagakure without being detected. Shin Uchiha and his sons are able to use the creatures as a medium in various ways, such as seeing what the creatures do for reconnaissance or communicating through the creatures. The creatures' Sharingan can be used to perform a type of space–time ninjutsu, although it is unknown if it possessed this ability itself or if it acted once again as a medium. The creature can also take the form of Shin's Mangekyō Sharingan.

Naruto Gaiden: The Seventh Hokage and the Scarlet Spring
One of the creatures is stationed outside Konohagakure, where it eventually notices Sarada Uchiha leaving the village. Seeing this through the creature, Shin sends one of his sons to capture her. When the Seventh Hokage interferes in the kidnapping, Shin has the creature use its space–time ninjutsu to recall his son.

Shin later uses one of the creatures to teleport himself and one of his sons to Sarada's location. When they are defeated by her friends and family, the creature teleports Shin and his son to safety, also teleporting Sakura Uchiha so that she can treat Shin's injuries. When their hideout is attacked and Shin's sons betray him, Shin tries to have the creature get him to safety. Sarada intercepts the creature and punches it in the eye, killing it.