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MR. A. SANDERS ON LIOLEPIS BELLI. 



[Feb. 6, 



point which is level with the transverse processes of the subsequent 

 vertebrae. 



Longissimus dorsi (figs. 4 & 12) arises from the transverse pro- 

 cesses of all the caudal vertebrae anterior to the twentieth ; at its 

 commencement it is thin and narrow, being enclosed in tbe caudal 

 muscles as in a sheath ; at the thirteenth it emerges and, becoming 

 superficial, increases greatly in size ; at the sacrum its ventral sur- 

 face is attached to the transverse processes, and is divided from the 

 dorsal part by a tendinous intersection ; in the back it is attached to 

 the pleurapophyses of the lumbar vertebrae and to the head of all 

 the dorsal ribs, being situated on the inner side of the sacro-lumbalis ; 

 it is also inserted into all the cervical ribs. At the third vertebra it 

 divides into three separate muscles, of which the 



Complexus (fig. 4) is situated nearest the middle line of the back ; 

 this goes forward superficially, to be inserted into the posterior border 

 of tbe parietal bone, internal to the insertion of the sterno-mastoid, 

 and to a slight extent into the supraoccipital bone. 



H/tf. 



TnP. 



Muscles of the back of the neck. 



Transversalis colli (figs. 3 & 5) lies more towards the ventral sur- 

 face ; going downwards and forward, it is inserted into the ventral 



