Two gerenuk subspecies are recognized, the southern gerenuk or Scalter’s gazelle, and the larger, northern gerenuk, also known as the Waller’s gazelle.
Two subspecies have been proposed for the gerenuk, but some authors considered these to be independent species. The boundary between the two named forms is not clearly defined.
The southern gerenuk (Litocranius walleri walleri) (Brooke, 1879) is also known as the Waller’s gazelle. Its range extends from northwestern Somalia (Berbera District) westward to touch the Ethiopian border and Djibouti.
The larger, northern gerenuk (Litocranius walleri sclateri) (Neumann, 1899), is also known as the Scalter’s gazelle. Its range extends through northeastern Tanzania through Kenya to Galcaio (Somalia). The range lies north of the Shebelle River and near Juba River.
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• Sources | (Castelló, J. R. 2016; Groves & Grubb, 2011; Grubb, 2002; IUCN SSC Antelope Specialist Group, 2016; Kingdon, 2015; The Wikimedia Foundation, 2020; Wilson & Reeder, 2005)