Thanks for the comment! According to Wikipedia, Tragelaphus strepsiceros is common name for greater kudus and "Tragelaphus strepsiceros strepsiceros" is one of the subspecies. The others are Strepsiceros chora, Strepsiceros cottoni and Strepsiceros zambesiensis. Maybe this one is Strepsiceros strepsiceros because this if from Namibia.
Actually, there is just one species of greater kudu, which is Strepsiceros strepsiceros, those four are all just subspecies, the genus Strepsiceros contains two species: the Lesser Kudu (Strepsiceros imberbis) and the Greater Kudu (Strepsiceros strepsiceros), the lesser kudu has two recognized subspecies: the Northern Lesser Kudu (Strepsiceros imberbis imberbis) and the Southern Lesser Kudu (Strepsiceros imberbis australis), while the greater kudu has four recognized subspecies: the Eastern Greater Kudu (Strepsiceros strepsiceros chora), the Western Greater Kudu (Strepsiceros strepsiceros cottoni), the Zambezi Greater Kudu (Strepsiceros strepsiceros zambesiensis), and the Cape Greater Kudu (Strepsiceros strepsiceros strepsiceros), the Tragelaphus genus is now restricted to only the bushbucks and contains just two extant species being the Northern Bushbuck (Tragelaphus scriptus) and the Southern Bushbuck (Tragelaphus sylvaticus), whereas the sitatunga, bongo, and nyalas do not belong to the Tragelaphus genus anymore, the sitatunga and bongo both now belong to the genus Bongo, where their scientific names are now Bongo spekii and Bongo eurycerus respectively, while the two species of nyala being the lowland nyala and mountain nyala both now belong to the genus Nyala, where their scientific names are now Nyala angasii and Nyala buxtoni respectively, while the Bongo genus that contains both the bongo and sitatunga is officially a sister taxon to the bushbucks (genus Tragelaphus), the nyalas (genus Nyala) and kudus (genus Strepsiceros) both actually have more in common with elands (genus Taurotragus), with kudus having the most in common with elands, while the nyalas are basal to both kudus and elands, this makes a total of five extant genera of spiral-horned antelope (tribe Tragelaphini) with only two extant species in each genus, the five extant genera of spiral-horned antelope are Tragelaphus (Bushbucks), Bongo (Bongo and Sitatunga), Nyala (Nyalas), Strepsiceros (Kudus), and Taurotragus (Elands), spiral-horned antelope are also now divided into two subtribes being Tragelaphina (Lesser Spiral-Horned Antelope) with the genera Tragelaphus (Bushbucks) and Bongo (Bongo and Sitatunga) and Taurotragina (Greater Spiral-Horned Antelope) with the genera Nyala (Nyalas), Strepsiceros (Kudus), and Taurotragus (Elands), because there are only one-hundred-and-sixty-four extant bovid species within seventy-two genera, here is the official bovid phylogeny as newly recognized:
