"Skeleton and volar Membranes of the Noctule Bat. c, clavicle; h, humerus; r, radius; u, ulna; d1, first digit or pollex; d2, d3, d4, d5, other digits of the manus supporting um, the wing-membrane; m, m, metacarpal bones; ph1, first phalanx; ph2, second phalanx; ph3, third phalanx; am, antebrachial membrane; f, femur; t, tibia; fb, fibula (rudimentary); c, calcaneum or calcar supporting im, the interfemoral membrane; pcl, post-calcaneal lobe." —The Encyclopedia Britannica, 1903

Noctule Bat

"Skeleton and volar Membranes of the Noctule Bat. c, clavicle; h, humerus; r, radius; u, ulna; d1, first…