Elbow morphology of three representative bats comparing degree of articulation. Anterior view of the right humeroradial (elbow) articulation of: A, Desmodus rotundus; B, Mystacina tuberculata; C, Molossus molossus Most rigid articulation occurs in Molossus (C), least in Desmodus (A), with Mystacina (B) exhibiting a pronounced inclination in articulation which directs the radius laterally. (A and C, after Smith 1972 , Figures 3 and 5) Scale bar = 4 mm.
Hand et al. BMC Evolutionary Biology 2009 9:169 doi:10.1186/1471-2148-9-169