Roy L. Moodie 457 
on the phalanges excepting some very minute points of bone which appear 
in the articular cartilage of one or two. 
So far as can be detected from my single specimen, Draco volans Linné, 
62 mm. in length, has no epiphyses, but it is possible that they would be 
evident in the young. The olecranon is free. 
ie. 
i 
If , 
p y 
Fie. 19. Fre. 20: 
Fie. 19. The fore limb of Heloderma suspectum Cope. The shaded parts 
represent the epiphyses. O-=the olecranon. There are two epiphyses on 
the os centrale. Twice natural size. 
Fic. 20. The right hind limb of Heloderma suspectum Cope, seen from 
above. The epiphysis # is probably an element of the tarsus which has 
become united with the metatarsal. The tibiale has two epiphyses which 
probably represent atrophied elements of the tarsus. Twice natural size. 
In the young specimen of Chameleon owenti Gray, 44 mm. in length, 
there are distinct bony epiphyses on each end of the humerus, radius and 
