Quagga mare at London Zoo, 1870, the only specimen photographed alive.

Quagga (Equus quagga quagga) is an extinct sub-species of zebra. Mare, London, Regent's Park ZOO.
Date 1870
Source http://www.biodiversitylibrary.org/page/28201475/#page/209/mode/1up
Author Frederick York (d. 1903)
Source: https://commons.wikimedia.org/wiki/File:Quagga_photo.jpg

The quagga (Equus quagga quagga) is an extinct subspecies of plains zebra that lived in South Africa until the 19th century. It was long thought to be a distinct species, but genetic studies have shown it to be the southernmost subspecies of plains zebra. It is considered particularly close to Burchell's zebra. Its name was derived from its call, which sounded like "kwa-ha-ha". Equus quagga quagga was distinguished from other zebras by its limited pattern of primarily brown and white stripes, mainly on the front part of the body.
Order: Perissodactyla
Family: Equidae
Genus: Equus
Species: Equus quagga
Subspecies: Equus quagga quagga (Boddaert, 1785)
Synonyms:
Hippotigris quagga Hamilton Smith, 1841
Hippotigris isabellinus Hamilton Smith, 1841
Equus quagga isabellinus Hamilton Smith, 1841
Equus quagga lorenzi Lydekker, 1902
Equus quagga greyi Lydekker, 1904
Equus quagga danielli Pocock, 1904
Equus quagga trouessarti Camerano, 1908
E. (Quagga) quagga quagga Shortridge, 1934