cat·ta·lo also cat·a·lo 
(kătl-ō′)
(kătl-ō′)n. pl. cat·ta·loes or cat·ta·los also cat·a·loes or cat·a·los
A hybrid that results from a cross between the North American bison (buffalo) and the beef cattle and typically has the appearance of a bison.
[CATT(LE) + (BUFF)ALO.]