278 THE MYOLOGY OF THE RAVEN. 



of the ilium ; from the angles of the last two vertebral 

 ribs ; and by tendinous slips from the outer ends of 

 the transverse processes of the last three dorsal 

 vertebrae. These last tendinous fasciculi spread out 

 upon, and merge with, the under side of the muscle, and 

 probably represent, as Owen says, the musculi accessorii 

 ad sacro-lumbalem. To be seen, the free and outer 

 margin of the muscle under discussion must be elevated. 



The sacro-lumbalis is inserted by a few fleshy fibres 

 into the angle of the first dorsal rib, and in muscular 

 subjects sometimes by a few additional fibres to corre- 

 sponding points upon the free cervical ribs ; while its 

 main insertion is by a strong semi-tendinous insertion 

 into the outer extremity of the diapophysis of the twelfth 

 cervical vertebra. 



As we might have expected, Sir Eichard Owen 

 found the insertion of this muscle considerably more 

 extensive than this in the Apteryx., and this eminent 

 anatomist seemed to see in the final insertions of the 

 sacro-lumbalis in that bird, the representatives of the 

 cervicalis descendens and ascendens as they have been 

 described for man. 



130. The longissimus dor si l has already been alluded 



Sacro-lumbalis. Selenka, p. 93, No. 1. 

 ,, ,, Gervais et Alix, p. 13. 



Watson, p. 55." 



Note. For Gadow's descriptions of his divisions of the spinal 

 system of muscles, see Bronn's Klassen des Thier-Reichs, vi. Bd., pp. 

 105-107. 



1 See footnotes under the sacro-lumbalis muscle of the present 

 work (No. 129), and the following synonymy will be made clear: 



" 2. M. LONGISSIMUS DORSI. 



Costo-cervical (pt.). Vicq d'Azyr. 



Innerer Riickgrats-Strecker (sacro-lumbalis). Tiedemann, 217. 



