On a new Bat, Taphozous dobsoni, from Madagascar

After the careful examination by Dobson ¹) of the walking and suctorial organs of certain Bats, it is evident, that although there is a great difference in external form, the structure and the physiological signification are the same. The very highly developed suctorial disks of Thyroptera tricolor and the comparatively simple adhesive sole of the foot and thumb of Vesperugo pachypus present a difference of degree only and not of function. Spix ²) is the first who has discovered and described a Bat, Thyroptera tricolor from Brazil, with sucking-cups. Several years after, Gray 3) announced the very curious Mystacina tuberculata of New-Zealand, with a remarkable climbing aparatus.