there is a ' 

 ide thi 

 1 

 It i.-^ long* 

 body, so th 

 inward. I 

 although the tul 



Of 01 



I leventh I 

 curved. Th 

 either merely im 

 are very indfc 



'J'lir bony rib 

 to the twelfth, 

 wall and is 

 portion of th 



rit>s sini e I 

 (typi 



having thi ir 



Tlu- costal cartilages 

 seven ribs thai tl 

 ribs ha 



and twelfth ribs ha 

 ribs may i 

 to the twelfth. 1 



Tl .Irani: 



possessing neith< 

 and then d< i 

 tilaginous api< cs; tl 

 ticularly of the mi 



The i 

 above down- 

 downward then 

 ; } . The >.ir: : : 

 other In 



ally thi 

 border for the thi 





3 



