OF TIIK SOLTlIliRN AITKHVX. 301 



DESCRIFriON OF THE PLATES. 



{Tlie figures are reduced one half the natural size.) 



Plate XXXI. Side view of the superficial muscles. 



Plate XXXII. Side view of the second layer of muscles. 



Plate XXXIII. Side views of the deeper seated muscles of the back and neck. 



Plate XXXIV. Side and front views of the second layer of muscles of the neck. 



Plate XXXV. Front view of the muscles of the Apteryx. 



PLATE XXXVI. 



The female organs of the Apteryx australis, nat. size. 



Fig. 1 a. The right ovarium. 

 b. The left ovarium. 

 c, d, e. The oviduct : the uterine portion laid open and a probe passed into it. 

 Fig. 2. A portion of the lining membrane, showing the disposition of the secreting 

 follicles of the egg-shell. 



VOL. in. P.\RT IV. 2 s 



