Fig. 44. 



Skeleton op Luth or Leathery Turtle (Dermochelys coriacea). 

 To show complete separation of shell from the ribs. (No. 186a.) 



Fig. 45. 



Skeleton of Green Turtle (C ketone mydas). 



To show union of shell with ribs. (No. 182.) 



(From specimens in the Museum.) 



[To face page M. 



