Alouatta seniculus (Linnaeus’ Red Howler)
Alouatta seniculus (Linnaeus, 1766)
It is large. The body is dark red, with the back and flanks paler. The head is proportionally large, with a naked face. The crown hairs run entirely forward, meeting the backward-directed hairs of the forehead in a forward-concave "V". The face is black. The throat looks swollen, a feature more…
