Oryx 43: 87. doi:10.1017/S0030605308099997. Archived from the original (PDF) on October 2, 2011. ↑ Merriam 1886, p. 63 ↑ Seton 1909, p. 885 ↑ Macdonald, D. W., Barreto, G. R., Ferreras, P., Kirk, B., Rushton, S., Yamaguchi, N. & Strachan, R. (1999).