northern greater galago noun1 •Otolemur garnettii, a nocturnal, arboreal primate endemic to eastern Africa.Otolemur garnettii (Northern Greater Galago), from eastern Africa, is similar to O. crassicaudatus but is rather smaller, shorter-eared, more greyish-toned and has a face that is not pale. — 2005 formsnorthern greater galagos