ABSTRACT
The Madi of the Opari District and the Luluba of the Central District are related to the Moru-Madi group and will be considered thereunder. In addition there are certain exceptions to the statement that all the tribes of eastern Mongalla belong to the Nilo-Hamitic group. The Didinga and Longarim are so alike that for practical purposes they may be regarded as one tribe. They have only one rain-maker Alukileng, who lives in the Longarim Hills and to whom the Topotha also resort; but local ceremonies are performed by the elders in certain localities. Lilley records a tradition that at one time the Longarim lived in the Topotha country, the Topotha living along the foot of the Lafit Hills. The Topotha, having quarrelled with the Lafit who lived on the hill-tops, attacked the Longarim and broke them up, driving them into their present hills, while one section made their way to Irenge in north-east Lafit.
