Fuelleborn's squeaker (Synodontis fuelleborni) is a species of upside-down catfish that is native to Tanzania where it is found in Lake Rukwa and the Rufiji River basin.

[3] Like all members of the genus Synodontis, S. fuelleborni has a strong, bony head capsule that extends back as far as the first spine of the dorsal fin.

[3] In S. fuelleborni, the spine of the dorsal fin is slightly shorter than the head, smooth in the front and serrated on the back.

[5] All members of Syndontis have a structure called a premaxillary toothpad, which is located on the very front of the upper jaw of the mouth.

[5] On the lower jaw, or mandible, the teeth of Syndontis are attached to flexible, stalk-like structures and described as "s-shaped" or "hooked".

[8] As a whole, species of Synodontis are omnivores, consuming insect larvae, algae, gastropods, bivalves, sponges, crustaceans, and the eggs of other fishes.