502 



"N. B The tendons of the first and second flexor of the middle toe 



are free in the Khea, and not united by a cross slip, as in the Emu. 



7. M. flexor perforatus digiti interni, 0*23 oz. 



Arises from the fascia covering the inner surface of solceus, and is inserted 

 into the near ends of the first phalanx of the inner toe. 



8. M. flexor hallucis long us, 0*10 oz. 



Arises from the outer ligament of the knee joint, and is inserted into the 

 near ends of the ungual phalanx of the inner toe, the largest tendon 

 being distributed to the outer side of the toe. 



9. M. flexor communis perforans, 1 # 22 oz. 



This muscle is formed, as in the Emu, of two distinct muscles, whose 

 tendons unite halfway down the cannon bone. 



a. This is a double-headed muscle, taking its origin from the backs 

 of both condyles, 0-24 oz, 



(3. Arises from the whole posterior surfaces of the tibia 



and fibula, 0*98 oz. 



1-22 oz. 



10. M. tibialis anticus, . . . . . . . . . . 1*52 oz. 



A two-headed muscle, as in the Emu, taking one origin from the outer 

 and anterior tubercles of the tibia, and another by a round tendon, 

 inside the knee joint, from the anterior surface of the outer condyle of 

 the femur. 



11. If. extensor digitorum communis, 0*63 oz. 



Arises from the anterior surfaces of the tibia and fibula, and is inserted 

 into the backs of the ungual phalanges, and into the common sheath of 

 the back of the foot. 



C. — Muscles of the Wings. 



The wing of the Ehea, like that of the Ostrich, which it resembles 

 in so many other respects, is much more fully developed than that of 

 the Emu, as may be seen from the accompanying sketch (Fig. 35). 



1. M. trapezius, 0*08 oz. 



Arises from the transverse processes of the last cervical vertebra, and 

 from the first rib, and is inserted into the acromial ridge at the top of 

 the scapula. 



2. M. rhomboideus, 0*02 oz. 



Arises from the side of the third dorsal vertebra, and is inserted into the 

 posterior inch of the back of the scapula. 



3. M. latissimus dor si, . . 0*1 5 oz. 



