An accidental mating between a male eland and a female kudu produced an animal with primarily eland phenotypic characteristics. Despite pronounced male behaviour the animal was azoospermic. Histological examination of the testis showed complete lack of germ cells. Chromosome studies with analysis of Giemsa bands showed that the parental karyotypes differed by two reciprocal translocations and one pericentric inversion, involving chromosomes 1 and 3, 5 and 11, and 9 respectively. All other chromosomes had identical banding patterns.