Natural History of the Mammalia of India and Ceylon

Genus Vesperugo

Bats with very broad and obtuse muzzles; the glandular prominences much developed between the eyes and the nostrils; crown of the head flat; but what distinguishes it from the following genus, Scotophilus, is the presence of four incisors in the upper jaw, whereas Scotophilus has two only—otherwise the two genera are very similar.