What is "marsh buck"

alt. 1 A swamp-dwelling antelope found throughout Central Africa, (taxlink Tragelaphus spekii species noshow=1) 2 An antelope found in forests throughout sub-Saharan Africa, (taxlink Tragelaphus scriptus species noshow=1). n. 1 A swamp-dwelling antelope found throughout Central Africa, (taxlink Tragelaphus spekii species noshow=1) 2 An antelope found in forests throughout sub-Saharan Africa, (taxlink Tragelaphus scriptus species noshow=1).