Bubalus species comprise the domestic water buffalo (B. bubalis), the wild water buffalo (B. arnee), the tamaraw (B. mindorensis), the lowland anoa (B. depressicornis), and the mountain anoa (B. quarlesi).[3] The latter two anoa species were proposed to form a subgenus Anoa within Bubalus.[4]
Smith described Bubalus as low in proportion to the bulk with very solid limbs, a small dewlap and a long, slender tail; the head is large with a strong convex-shaped narrow forehead, large eyes and funnel-shaped ears; horns are lying flat or bending laterally with a certain direction to the rear; the female udder has four mammae.[5]Lydekker added that the line of back is nearly straight with 13 pairs of ribs; the tail is tufted and reaching about to the hocks; the horns are more or less markedly triangular for the greater part of their length and situated low down on the skull; the muzzle is broad, and the hair sparse in adults.[6]
^FAO (2013). Breeds from species: Buffalo. Domestic Animal Diversity Information System, Food and Agriculture Organization of the United Nations, Rome.
^Smith, C. H. (1827). "Sub-genus I. Bubalus". In Griffith, E. (ed.). The animal kingdom arranged in conformity with its organization. Class Mammalia, Volume 5. London: Geo. B. Whittaker. pp. 371–373.
^Lydekker, R. (1913). "Subgenus Bubalus". Catalogue of the ungulate mammals in the British Museum (Natural History). London: British Museum (Natural History). p. 40.
^Croft, D. A., Heaney, L. R., Flynn, J. J., Bautista, A. P. (2006). Fossil remains of a new, diminutive Bubalus (Artiodactyla: Bovidae: Bovini) from Cebu island, Philippines. Journal of Mammalogy 87(#5): 1037–1051.
^Hopwood, A. T. (1925). "A new species of buffalo from the Pleistocene of China". Annals and Magazine of Natural History. 9. XVI (92): 238–239. doi:10.1080/00222932508633297.
^Schreiber, H. D., Munk, W. (2002). A skull fragment of Bubalus murrensis (Berckhemer, 1927) (Mammalia, Bovinae) from the Pleistocene of Bruchsal-Buchenau (NE-Karlsruhe, SW-Germany). Neues Jahrbuch für Geologie und Paläontologie (12): 737–748.