At clarissimi omnium fuere Nigritae; a Nigro flumine dicti; et Nubiorum gens magna, unde hodieque vastissima regio dicitur Nubia. Ea autem Athiopiae pars quae Nilo utrimque adjacet, Athiopia dicitur sub Agypto; atque in ea ad Nili paludes seu lacus Cinnamomifera regio. At totum sinus Arabici laevum larus Arabes tenuere Troglodytae, unde regio ipsa Troglodytica.

This was likewise the custom of the Troglodytae, a people bordering upon Aethiopia who, according to Aelian, lived in subterranean caverns; from whence, indeed they took their name trogli, signifying a cavern; and Virgil, in his Georgics, thus describes the Sarmatae, Ipsi in defossis specubus, secura sub alta Ocia agunt terra.