Cross section of phalanges of M. ornata showing no LAG (A), 1 LAG (B) and 3 LAGs (C). Cross section of femur of the
frog with 3 phalangeal LAGs (D) (haematoxylin). Scale line = 50 mm. Mc, marrow cavity; Eb, endosteal bone; Pbm, periosteal bone
margin; arrows, LAGs