| 1.    Os   cornua | The horn bone over frontal | 
| 2.    Os   femoris | The femur | 
| 3.    Os   coxae | Half of Man’s pelvis | 
| 4.    Os   penis | Penis bone (dog) | 
| 5.    Os   innominatum | An irregular bone that form the bony pelvis. It is formed by the fusion of three pieces:   Ilium, Ischium & Pubis. |