Synodontis ilebrevis is a species of upside-down catfish endemic to Zambia, where it is only known from Lake Tanganyika. It was first described by Jeremy John Wright and Lawrence M. Page in 2006, from specimens collected from Lake Tanganyika at Cape Chaitika, Zambia. The species name comes from the Latin word "ile", meaning intestine, and the Latin word "bevis", meaning short, and refers to the relatively short gut of this species. Description Like all members of the genus Synodontis, S. ilebrevis has a strong, bony head capsule that extends back as far as the first spine of the dorsal fin. The head is about of the standard length of the fish. The head contains a distinct narrow, bony, external protrusion called a humeral process. The shape and size of the humeral process helps to identify the species. In S. ilebrevis, the humeral process is triangular and rough, with a poorly defined ridge on the bottom edge. The top edge is concave and the end is sharply pointed. It is about of the length of the head. The diameter of the eye is about of the length of the head. The fish has three pairs of barbels. The maxillary barbels are on located on the upper jaw, and two pairs of mandibular barbels are on the lower jaw. The maxillary barbel has a narrow membrane attached near the base and is straight without any branches. It extends at least as far as the base of the pectoral spine, a bit less than half of length of the head. The outer pair of mandibular barbels extends just past the front of the pectoral girdle, about of the length of the head, and contains three to six weak branches, usually without secondary branches. The inner pair of mandibular barbels is about to as long as the outer pair, about of the length of the head, with three to five pairs of branches, with many secondary branches present. The skin of S. ilebrevis has a large number of tiny vertical skin folds. The exact purpose of the skin folds is not known, but is a characteristic of the species of Syndontis that are endemic to Lake Tanganyika. External sort, flat papilla are present and give the skin a pebbled appearance. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. ilebrevis, the spine